Exoneration for Everyone

"Exoneration for Everyone" (全員メンザイ) is the one hundred and thirty-first chapter of the Seraph of the End: Vampire Reign manga series, written by Takaya Kagami and illustrated by Yamato Yamamoto.

Synopsis
Mika fondly discusses the last day he was human with Yu. Mentioning bringing back their orphanage family, Mika also raises how he will be human again so they can enjoy eating together. To that end, Yu and Mika summarize their plan to collect the sinful keys and bring Mikaela back to life.

If Yu really is Mikaela though, Mika means to keep him safe. In assuring Yu that he will save him no matter what, Mika checks whether he means to sacrifice himself to save others. Also if bringing Mikaela back means that Yu would go away, that is something Mika does not want. When a revivification takes place, Mika recognizes a sacrifice is involved where Guren losing his squad and Sika Madu his son is visualized.

Yu's goal is to not let God punish anybody. Mika wants Yu to promise he would not decide to sacrifice himself for everyone else should the chance arise. In turn, Yu asks if Mika will promise the same. Promising one another, Yu notes Mika sounds like his old self. For others like Mahiru and Ferid who have plans, Mika is optimistic he has a good one himself.

Yu enters the demon army headquarters where vampire progenitors including Saito and Urd are.

Characters
List of characters in order of appearance:


 * Yūichirō Hyakuya (flashback as a child as well)
 * Mikaela Hyakuya (flashback as a child as well)
 * Hyakuya Orphanage Family (as a memory and flashback as well)
 * Guren Ichinose (mentioned and visualized)
 * Ferid Bathory (mentioned and visualized)
 * Mikaela (mentioned and remembered)
 * Shikama Dōji (mentioned, remembered, and visualized)
 * Shinya Hīragi (as a memory)
 * God (mentioned only)
 * Mahiru Hīragi (mentioned and visualized)
 * Saitō (mentioned, visualized, and seen)
 * Basteya Irclu
 * Ky Luc
 * Urd Geales
 * Lest Karr

Summary
Looking up to the sky, Yu contemplates how Heaven is up there and how down here is supposed to be Hell. As Yu turns to the sound of his voice, Mika calls to him that it went in his direction. The entity in question is a large bear that swings its paw towards Yu. Unsheathing his sword, Yu states he is sorry but he has to eat the bear. After slicing past it, Yu leaves the bear thudding to the ground.

After Mika asks him how many that makes now, Yu answers the bear is the third. Yu is impressed to see that Mika has acquired two boars to add to the total. As Mika drops them both to the ground he speaks how they have to make sure they are always topped up on food, before adding how Yu has absolutely horrible energy efficiency. Replying it is Mika gobbling up all his strength, Yu details how it is smarter to hunt for food while they are able. The rations can then be saved for when Yu really needs them.

Saying to let him start a fire, Mika uses his tail to drill into a piece of wood he has acquired. With fire produced, Mika states for Yu to butcher the meat which he proceeds to carry out. First, Yu says how he will take off his top first since he does not want to get blood on it, then mentions the issue of doing laundry out here.

Mentioning how he wishes he could have some curry, Yu says he misses that stuff. Happily asking if he remembers the last day he was human, Mika claims that Yu swiped his share of the curry and ate it. Upset at the thought, Yu protests he did not and speaks the truth that he set Mika's share aside. Paying no mind to that, Mika questions Yu whether the kids liked their last meal. Yu recalls some members of their orphanage family enjoying themselves eating together.

Appearing melancholic, Yu does not address whether the kids liked their meal, rather answers Mika that the kids said they wished that they could have shared it with him. Ever happy, Mika responds that he figured as much. Additionally, Mika bets it was boring without the main character of himself around. While Mika tends to the now established fire he details that they will just have to bring them all back and have a big curry dinner together. When Yu asks if he can eat, Mika clarifies he would be a human again by that point. As he butchers the meat with his sword, Yu notes that Mika is suddenly optimistic.

Raising if Yu made up his mind for sure, Mika tells him he might as well get used to the idea. After Mika questions if Yu is going to give up, Yu firmly responds no, before moving to how Mika could at least help him butcher the produce they have. Mika is sorry that he is too busy to do so, he has to think up plans.

By nightfall, Yu eats some of the meat around the fire with Mika. To summarize their plan, Mika details how their goal is to collect the sinful keys and bring Mikaela back to life. As Yu listens, it is taken into account that Guren and Ferid are also looking for the sinful keys and they have gotten a head start on Yu and Mika. They do not know what Guren and Ferid are planning.

Yu has the impression that Guren is trying to bring all of humanity back to life, minus Mikaela. When Mika raises what Ferid may be after, Yu answers if there is anybody on this planet who knows what goes through that guy's head. Ferid is visualized merrily pursuing a butterfly with his sword drawn and laughing merrily. As Mika gives some thought to it, Yu states Ferid is probably thinking of the most warped, twisted thing ever.

Mika says to wait, if the past they saw was true then is Yu not Mikaela. Where Yu is shocked at the reminder of what the memories apparently showed, Mika says to think for a sec. If Guren's wish comes true then he will bring all of humanity back to life. Mika specifies that for Mikaela however, namely Yu, he will stay dead. Finding it confusing, Yu wonders if that is the case. Similarly, Mika questions isn't that how it works.

Bringing Mikaela back requires all the sinful keys, the same for bringing humanity back. Mika explains that Yu is really the angel Mikaela. With Yu registering that, Mika goes on to say when it is looked at that way then their positions have totally flipped. Laughing about it, Mika goes on to mention that reviving all of humanity does not mean squat to him. In going through all this, it finally dawned on Mika that his job is to keep Yu safe at all costs and that is it.

From this, Yu identifies so that is why Mika is suddenly motivated. Yu notes it is almost as much as Mika was years ago. Confirming that Yu got it right, Mika stands to joyfully announce that all a dunce like Yu has to do is follow the instructions of Mika the genius. Mika affirms that he will save Yu no matter what, and promises it as well. When Yu is happy to observe that Mika is excited, Mika tells him they have made it this far and Yu is not allowed to die on him now.

Where Yu guesses so, Mika changes his approach and says to hang on, he thought for sure that this was the part where Yu would say that all they need to do is sacrifice himself. Rejecting the idea, Yu states he is still confused about which one of them is which, before adding though the past him seemed like he was kind of smart (of which the child resembling him may have been in mind). Agreeing that is a good point, Mika teases how back in the far past that Yu was smart, but looking at him now. In response Yu finishes Mika's sentence that now he is even smarter.

Addressing the matter, Yu states if they do not know for sure which of them is which they cannot pick yet. If they cannot bring angel Mikaela back to life, one or the other of them could end up dying to which Yu says they don't want that. Discussing whether they know if angel Mikaela is even a separate being anymore, Mika says how bringing him back requires all seven sinful keys.

Asking what if bringing them means who Yu is now goes away, Mika does not want that. While Yu states he does not mind either way, Mika asserts he does mind. While Yu does not mind what happens to himself, identically he would care if Mika disappeared. After Mika finds Yu understands the perspective, Yu speaks to see if he has things straight.

When Yu details that the First's goal is to bring angel Mikaela back to life and then use angel Mikaela's life to bring all the angels back, Mika replies that is probably the case. After Yu explains how Guren's goal is to use the sinful keys to bring back all of humanity, Mika sees that is right. As he begins to speak concerning his memories, Yu changes to asking what was Mikaela's goal.

From what they saw, Mika feels Mikaela wanted to save the First. Mika guesses that saving the First would probably mean that would let him bring all the angels back however. Bringing up how revivification has a price, Mika points out that God always metes out punishment so he wonders who will the sacrifice be this time. Concerning sacrifices, Guren holding the deceased body of Shinya is visualized. Similarly, Shikama Doji is recalled holding the deceased Mikaela.

Giving some thought to the matter, Yu speaks how his goal will be to not not God punish anybody. Regarding him, Mika draws to where Yu is sat. Placing his hand on his shoulder, Mika checks if Yu is including himself in that statement.

Speaking on his level, Mika covers a scenario of Yu getting back to life as angel Mikaela, only to wind up getting punished in the First's place and dying in order to bring back all the angels and the humans, Mika is clear he will not let that happen. Mika asks Yu is that is understood. Answering yes without any issue, Yu responds that Mika is going to think of a way to work it all out.

While Mika is set on arranging a plan, he investigates whether should stuff happen and he has to make a choice, would Yu decide to sacrifice himself for everyone else. Mika requests that Yu promise him that he won't do that. In response to Yu taking his time to answer that question, Mika firmly states he will not help him unless he promises not to give up on himself all the way to the very end.

On sacrificing himself for others, Yu asks Mika what about the other way around. Yu raises should they figure out somehow that actually Mika is angel Mikaela, would he promise the same thing. Feeling the same, Yu says for Mika to not sacrifice himself no matter what. Taken aback at the question for a moment, Mika confirms with Yu he would do the same.

Framing the situation as a story about people sacrificing themselves, Mika feels as long as that keeps happening, nothing will ever end. Mika continues to elucidate that it is all one big vicious cycle of desire and obsession. Guren and Ferid are depicted as this is stated.

After a moment regarding the night sky, Mika addresses for himself, he has already died. From thoughts involving members of their orphanage family lying deceased, Mika and Yu are recalled from the massacre in the exit hall of Sanguinem. As Mika raises if he has to cling to what he calls this meaningless un-life of his, Yu awaits him to divulge what is on his mind.

Sharing what he has to say, Mika informs Yu that this time he is going to make sure they win without any sacrifices. Mika promises this to Yu, much to his delight. Mindful of it, Yu asks whether it is him or is Mika starting to sound more like his old self. Seeking the answer he was after before, Mika requests that Yu just promise him already and say he won't give up on himself.

Asking if Mika is sure he can come up with a plan, Yu raises how the other guys are all super smart. For those in mind, there is Guren and Mahiru. The First is also acknowledged, as is Saito, and Ferid too. In response, Mika is pleased to announce they they have got someone super smart on their side while pointing to himself.

For who the super smart someone is on their side, Yu happily points that it is himself. Turning back to the matter at hand, Mika states whatever the case they are still the ones who are on the front lines since everybody else thinks that he is angel Mikaela. If nobody else knows that it is the opposite, Mika thinks he can come up with the best, most twisted plan to blow everybody out of the water.

Excited at the notion, Yu well-meaningly declares how Mika is the most twisted, most warped one of them all, much to Mika's displeasure. The both of them inspired, Yu announces for them to do this as Mika agrees. After the moment of triumph, Yu questions Mika what exactly is the plan that they are doing.

Having made his way to the Demon Army headquarters, Yu heads to the large double doors and is ready to enter. Opening the doors, Yu finds members of the progenitor council in the room. Lest Karr and Urd are present, as are Ky Luc and Basteya. In the centre of them, Saito is seated on a throne.

As some of the strongest vampires in the world regard him, none of them appear friendly. Saito is the one to speak, who comments what an unexpected guest. After Saito asks why is he here, Yu looks ahead determined.

Quotes
"Maaan... I wish I could have some curry. I miss that stuff."

- Yu as he and Mika prepare to eat.

"Remember the last day I was human? You swiped my share of the curry and ate it!"

- Mika happy to joke and remember the nice aspects of his last day as a human (Yu would add, correctly, that he set Mika's share aside).

"They said they wished they could've shared it with you."

- Yu responding to Mika's question on whether the kids liked their last meal.

"Yeah. I figured as much. I bet it was boring without the main character around."

- Mika remains joyful when discussing how he was absent for eating curry with their family on his last day.

"We'll just have to bring them all back and have a big curry dinner together. I'll be a human again by that point, of course."

- Mika speaks of eating together with his family and being a human again for the first ever time.

"You made up your mind, right? Might as well get used to the idea."

- Mika addresses why he was optimistic when Yu has mentioned turning him back into a human before.

"So! To summarize... Our goal is to collect the sinful keys and bring Mikaela back to life. But! Guren and Ferid are also looking for the sinful keys, and they've got a head start on on us. We don't know what they are planning."

- Mika details his and Yu's plan, and has taken into account what others have planned.

"I get the impression Guren's trying to bring all of humanity back to life... ...Minus Mikaela."

- Yu shares his view on Guren's plan.

"Is there anybody on this planet who knows what goes through that guy's head? He's probably thinking of the most warped, twisted thing ever."

- Yu when asked what Ferid may be planning, where Ferid is envisioned happily chasing a butterfly with his sword.

"But if that past we saw is true... ...Then aren't you Mikaela?"

- Mika considers the truth of the memory, then addresses how in fact it may be Yu who is the past angel Mikaela.

"If Guren's wish comes true... ...He'll bring all of humanity back to life, but Mikaela-you-will stay dead. Isn't that how it works?"

- Mika as he understands the situation and considering Guren's plan.

"Bringing Mikaela back requires all the sinful keys. But bringing humanity back requires all of them too."

- Mika noting the seven keys can be used for one of the options.

"But you're really the angel Mikaela. And when you look at it that way... ...Our positions have totally flip-flopped! Reviving all of humanity doesn't mean squat to me! Going through all of this, it finally hit me. My job is to keep you safe, at all costs. That's it!"

- Mika before was fine with humanity being resurrected over himself, but now that it's Yu he reverses to protecting him above all else.

"Aha! So that's why you're suddenly motivated. Almost as much as you were years ago."

- Yu after Mika states he will keep him safe, and noting his upbeat demeanour.

"Yep! You got it! All a dunce like you has to do is follow the instructions of Mika the genius!"

- Mika is thrilled he can form plans to look after Yu's interests.

"I'll save you, no matter what! I promise! We've made it this far. You aren't allowed to die on me now! (After Yu states he guesses so) Hm? Hang on. I thought for sure this was the part you would say, "then all we have to do is sacrifice me!""

- Mika means what he says but also checks to see whether Yu means to sacrifice his own life to resurrect others.

"Anyway! If we don't know for sure which of us is which, we can't pick yet. If we can't bring angel Mikaela back to life, one or the other of us could end up dying. And we don't want that."

- Yu's understanding of the resurrection process, and taking into the account the possibility one of them could perish.

"Heck, do we know if angel Mikaela is even a separate being anymore? Bringing him back requires all seven sinful keys. What if bringing them back means who you are now goes away? I don't want that."

- Mika considering Mikaela's status, and having Yu's well-being foremost in his mind.

"Huh... Okay. So let me see if I have things straight. The First's goal is to bring angel Mikaela back to life... ...And then use angel Mikaela's life to bring all the angels back. And Guren's goal is to use the sinful keys to bring all of humanity back."

- Yu speculates on what Shikama Doji wants, and accurately summarizes Guren's goal.

"From what we saw, he wanted to save the First. But saving the First probably means letting him bring all the angels back."

- Mika answers Yu what Mikaela's goal was, where the keys would be used for angels and likely not humans.

"Revivification has a price. God always metes out punishment. Who will the sacrifice be this time?"

- Mika regards the resurrection process as sacrificial based where God is directly involved in it.

"Okay then. My goal... ...Will be to not let God punish anybody."

- Yu after it is taken into account how God punishes those who resurrect others.

"And... ...You are including yourself in that statement. Right? You getting brought back to life as angel Mikaela... ...Only to wind up getting punished in the First's place... ...And dying in order to bring back both all the angels and all the humans. I will not let that happen! Understood?"

- Mika reads into Yu's comment that he won't let God punish anyone, and articulating the scenario that he won't let Yu withstand.

"Yep! And you're going to think of a way to make it all work out, right?"

- Yu promptly answers Mika he doesn't mean to endure punishment in others' place, and looking to Mika to find a way for their plan to work.

"Well yeah. But if stuff happens and you have to make a choice... ...Promise me you won't ever decide to sacrifice yourself for everyone else. (Yu pauses in answering) I will not help you... ...Unless you promise not to give up on yourself, all the way to the very end!"

- Mika agrees he will form the plan, before returning to the matter of having Yu promise he won't do anything that undermines himself in case of future possibilities.

"What about the other way around? If we figure out somehow that you're actually angel Mikaela... ...Will you promise me the same thing? Don't sacrifice yourself, no matter what."

- Yu asks the same of Mika.

"Yeah. I will. This whole damn story... ...Is about people sacrificing themselves. As long as that keeps happening, nothing will ever end. It's all one big vicious cycle... ...of desire and obsession."

- Mika confirms with Yu he will not sacrifice himself before commenting to acknowledge the wider picture that others are collectively involved in.

"But me? I've already died. If I have to cling to this meaningless un-life of mine... ...Then this time, I'm going to make sure we win without any sacrifices. That, I promise you."

- Mika shares his view on his own life, yet promises Yu he will have them win with no drawbacks.

"Are you sure you can come up with a plan? The other guys are all super smart. There's Guren. Mahiru. The First. Saito. And Ferid too."

- Yu asks Mika if he can come up with something given who else is involved.

"C'mon. We've got someone super-smart on our side too."

- Mika happy at the idea he can be counted on to help Yu even when pitted against threats who have shown themselves to be very clever.

"Whatever the case, we're still the ones who're on the front lines. Everybody else thinks I'm angel Mikaela. If nobody else knows that it's the opposite... ...Then I think I just came up with the best, most twisted plan to blow everybody else out of the water!"

- Mika realizes their advantage and with that information he forms a plan right away.

"That's the most twisted-est, most warped one of us all! Let's do this!"

- Yu's excited praise for Mika after he mentions a best twisted plan for them to win.

"Well, well! What an unexpected guest. Why are you here?"

- Saito sees that Yu has arrived to where he is in the Demon Army headquarters.

Cover Details
The feature image for chapter 131 is a color image of one character, namely Yu and his content resolute appearing face. It is possible this is a depiction of Yu for artistic purposes, though it is likely this is an in-universe scenario of Yu with the slightly cloudy blue sky above the Sea of Trees around Mt. Fuji that he and Mika are currently located in. That a side of his face is slightly in the shade may be on account of the trees that would be around.

Where in the manga the colors are only seen in the semi-rare colored images, the green of Yu's eyes and the red decorative features of his uniform can be viewed. For other cover images, often the lettering details are in two areas, for example in the top and bottom of the image. For here, the chapter number, title, Seraph of the End logo and authorship details are all located together right at the bottom of the image.


 * In taking a moment to regard the sky, it would seem Yu and Mika were in the process of catching animals in the area as a food source. Knowing where he is having split up slightly to widen their search, Mika alerts Yu where one is heading.
 * As in real life, there are Asian black bears and boars living in Aokigahara.
 * Far from being afraid of an attacking feral appearing bear, Yu dispatches it with his sword.
 * In defeating the bear, Yu is seen using his sword without verbally activating the curse based elements of the weapon, where he benefits from enhanced reflexes all the same.
 * The bear is the third animal acquired with two unknown ones, the two boars Mika brings raises the total number seen to be five.
 * Bearing no weapon, Mika was observed to be able to deflect the cursed gear projectiles of the Gekkouin bow used by Yoichi in chapter 112: "The Price of Appetite". For his battle capabilities as a demon, Mika's offensive prowess is seen for the first time where he can dispatch boars without a weapon.
 * Gathering food from what is available in the forest is being done to preserve the rations that were gathered initially before setting up base in the forest.
 * This is the first time when Mika shows he is capable of manipulating his demon tail. As well as being able to control it, the tail can be used as a drill to create the friction in wood to successfully induce a fire. This also displays that while appearing shadow-like, the tail can be solid, indeed very hard.
 * From Yu's comment on doing laundry out here it may be inferred that Yu and Mika have been living in the forest for an unstated amount of time after traversing memories together.
 * For what he may like to eat, Yu wishes he could have some curry.
 * The first time Mika speaks warmly of his last day as a human, he is happy to discuss the time with his and Yu's family and not focus on the murders that would later take place.
 * Where Mika was likely teasing Yu on him taking his curry, Yu was correct in saying he saved some for Mika which he did when dinner was being eaten in chapter 1: "The World of Blood Legacy".
 * Yu appears mortified that Mika would think he took his curry.
 * Five members of the Hyakuya orphanage family are remembered in their abode within Sanguinem.
 * Although Yu is asked if the kids liked their last meal, his melancholy appears based on the fact that Mika was not there for the dinner. Accordingly, Yu answers not whether the kids enjoyed it, but how they wanted to share it with Mika. It's not shown whether the kids did say this at the time, though it is surely Yu's feelings being shown in any case.
 * Although Mika settled for Yu as his remaining family, yet spoke of resurrecting everyone over himself when he was in a position of being around others perhaps ready to ask why one person was more valuable over the rest of humanity, here Mika speaks about bringing his and Yu's family back to enjoy curry together. The intent to resurrect seems genuine, and not based on the possibility of unspoken pressure by others.
 * Similarly, it is the very first time Mika speaks of becoming a human again. Both appear based on what Yu wants, as well as Mika being in the process of forming a plan that involves a different type of resurrection method that now seem feasible.
 * In asking whether Mika can eat, and his response, it can be inferred that demons are unable to eat. Having said that, Mika can interact with the physical world so it's unclear what the situation would be should he choose to eat.
 * Together until night fall, the moon type at that time appears partway between a first quarter moon and waxing gibbous moon.
 * The plan formed by Yu and Mika is to collect the seven sinful keys and bring Mikaela back to life. In the previous chapter, it appeared that Mikaela had formed his own unknown resurrection based plan different to the one Sika Madu had in mind.
 * Both Guren and Ferid are noted to be looking for the sinful keys where Mika feels they have a head start on them.
 * Yu gets the impression that Guren is trying to bring all of humanity back to life aside from Mikaela, which is accurate. If Guren's plan succeeds, Mikaela who Mika states is Yu would be kept dead, and so Mikaela's resurrection plan would not be able to be explored.
 * In chapter 114: "Everyone's Goals" Mika claimed to be okay with resurrecting everyone over himself. While willing to forgo himself for others, here with the situation changed where Yu's well-being is at stake, Mika comments that reviving all of humanity does not mean anything to him, where he will not resurrect humanity if that undermines Yu.
 * Picking up on his upbeat behaviour, Yu comments how Mika is almost as motivated as he was years ago which comes down to Mika's desire to ensure that Yu is safe.
 * When stating that he will keep Yu safe no matter what, Mika's words serve two purposes. The first are to share his true ambition to defend Yu, and to also see if Yu has any intent to sacrifice himself to save others.
 * Although Yu thought he was Mikaela, here he still has doubts as to which one of them is which that he shares with Mika.
 * Yu feels if they cannot bring angel Mikaela back to life, himself or Mika could end up dying. This appears based on the prospect of Guren or someone else succeeding in their resurrection plan which may result in the loss of one of them.
 * While Mikaela's spirit was seen entering the body of a child, Mika considers the possibility that Mikaela could be an independent being from Yu's body at this point in time.
 * The possibility of Yu losing himself should be Mikaela be resurrected is not something Mika wants, a potential obstacle to their plan of resurrecting Mikaela to begin with.
 * Although Yu does not mind if he went away for Mikaela to be resurrected, he would care if Mika was the one who disappeared.
 * Yu thinks Shikama Doji's goal was to restore Mikaela back to life to use his life to bring the angels back. In chapter 128: "The Wings of Icarus" Sika Madu seemed distraught over the loss of his son, rather than the loss of the chance to resurrect the fallen angels, where the light of the Tower of Babel was still an option for resurrection. The previous chapter: "The Light Which Remains" showed that the homunculus named Yu was capable of expelling the sinful keys. Yu's belief may be partly unsubstantiated, Sika Madu did want to bring Mikaela back to life to access the sinful keys, but it was not stated whether he meant for Mikaela to perish for this.
 * Yu's reiterated understanding that Guren wants to use the sinful keys to bring all of humanity back remains correct though.
 * Both Yu and Mika seem against the idea that they are linked to the Mikaela and homunculus named Yu of the past. Yu changes from discussing his, to angel Mikaela's goal. Even if their are links, as before in the previous chapter Yu and Mika are treating the past Mikaela and homunculus named Yu as different beings.
 * For what Mikaela's goal was, Mika feels he wanted to save the First, who would go on to resurrect all the angels. Mikaela indeed wanted to save everyone, though it is a question why he didn't produce the sinful keys to Sika Madu when he was conscious in a human body and could have the homunculus bring the keys from his corpse. Saving Sika Madu may entail doing something about the newfound vampire state he found himself in, or ensuring that God or any of the Trumpets of the Apocalypse would not enact vengeance for breaking the taboo of resurrection.
 * Supposedly unconnected losses took place before a resurrection attempt, both for Guren finding Shinya and his squad deceased, and also Shikama Doji coming across Mikaela deceased. This may mean Mika's understanding of the god in question is that it counts that as the sacrifice involved for resurrection.
 * Based on remarks by others, it would not be out of character for the god in question to enable someone to be sacrificed, knowing that someone would attempt to resurrect them, then punish them for doing something it knew they would do. Thus where Shinya and Guren's squad perished, and Mikaela took his own life due to Paimon's influence, these apparently standalone events with their own circumstances may have been due to God instigating them without anyone suspecting. That Mika may feel this is the case seems more apparent when he asks who the sacrifice will be this time where there seems the expectation that there would be one.
 * When sacrifices are mentioned, Guren holding Shinya around the time of the Catastrophe is visualized, as is Sika Madu cradling the deceased Mikaela after his passing in the Tower of Babel.
 * Upon hearing how God punishes revivification, Yu decides that his goal will be to not let God punish anyone. For his words, Mika responds by ascertaining whether Yu is including himself.
 * Even with the possibility of having all humans and angels resurrected, Mika will not let that happen if it involves Yu experiencing punishment for that.
 * Quick to assure Mika that he is not planning on taking the punishment for resurrection, Yu sees Mika as his recourse to find a way to make it all work out.
 * Where the subject was changed, Mika seeks to have Yu promise he won't decide to sacrifice himself, and will not help him unless he does so.
 * Asking the same to someone who sacrificed himself to allow his escape from Sanguinem, then sacrifice himself again to offer Yu a chance of survival when they came under attack in Chapter 89: "Vampire's End", then offer to forgo himself to resurrect all of humanity, Yu gets Mika, the one with a track record of sacrificing himself for others, to promise to not sacrifice himself.
 * As Mika speaks how there are scenarios of people sacrificing themselves, Guren and Ferid are envisioned. Guren has made sacrifices for others, but it is not clear what Ferid has done. His depiction at that point in the chapter may be a first indication that he has lost something, alternatively he may be involved in the vicious cycle of desire and obsession that Mika discusses. Ferid is certainly obsessive in trying to kill others.
 * With members of their family remembered deceased, Mika feels he has already died. While he seemed a lot more comfortable as a demon than he ever was as a vampire, there is a first comment on his state where he feels it is a meaningless un-life to cling to. A comment in passing or not, regardless Mika returns to his optimistic self in detailing that he is going to make sure he and Yu win without any sacrifices.
 * Visibly pleased at the stated goal, Yu comments Mika is starting to sound more like himself.
 * Adequately taking into account those involved with resurrection ideas, Yu considers Guren, Mahiru, Shikama Doji, Saito, and Ferid to all be super smart. Mahiru is not left out despite what little Yu knows about her. It is ultimately the same case for Saito.
 * For all the clever members who are involved, Mika seems confident in himself that he is smart too.
 * Mika's words that they are on the front lines is apt, they are at the forefront of knowledge and ahead in a race where information is concerned given that he and Yu appear the only ones who know that it is Yu who is Mikaela, where others assume it is Mika largely on account of his name and appearance.
 * The detail that everyone thinks he is angel Mikaela (which is not the case) appears to factor into Mika's plan he has formed at this point.
 * Fine with describing his plan as twisted, Mika is not as keen in himself being called twisted and warped, though Yu meant it as inoffensive praise for his intellect.
 * For what Mika's plan is, it is not just announced but outright commences in this chapter and involves moving from the location of Mt. Fuji to the Demon Army headquarters.
 * The name of the city is not mentioned, but the Demon Army headquarters is located in Shibuya. The city formally fell to the vampire progenitors in chapter 121: "Last Dawn" so was under their jurisdiction henceforth.
 * While engaging with the vampire progenitors in Shibuya, imprisoned somewhere in the city is Shinya and Kureto. It is likely that Aoi Sangū would also be somewhere in Shibuya.
 * Narumi was last seen in Shibuya in chapter 77: "Rescue for the Devil" as well. Despite the chapter numbers, in terms of the in-universe time passed it is feasible that Narumi may have remained there when the vampires arrived to claim the city and subjugate the Demon Army members there.
 * Yu is seen outside of the Mt. Fuji area for the first time since arriving there in chapter 121. The previous chapter 130 concluded the memory traversing that Yu and Mika spent time navigating while physically being in this location.
 * It is likely that Yu's arrival would have been shared with the vampire progenitors for them to be awaiting him in a room together, rather than him turn up randomly where they were gathered there.
 * Yu is facing a number of vampire progenitors:
 * He is seeing Lest Karr and Urd for the first time since chapter 49: "Progenitor's Memory" when they came across one another in Osaka Bay, though they were at different points in the city of Shibuya in chapter 91: "Orphan Prince" without seeing one another.
 * Having last seen Ky Luc when combat was initiated against him in his seraph state in chapter 59: "Who Is Your Owner?" Yu meets him once again. Like Lest Karr and Ky Luc, he was in Shibuya though at different spots in the battlefield without any contact.
 * Meeting them for the first time, Yu has not seen Basteya before, though he was in a different location in Shibuya when Basteya was attacking Demon Army soldiers in chapter 80: "Lightning over Shibuya".
 * Of some of the most vampires in the world, Saito is the only one seated, on a throne no less with others on either side of him.
 * It is likely that Shikama Doji would still be in the prison made for him somewhere in Shibuya.
 * The First's memories were accessed by Saito, who is likely aware of everything Yu and Mika have seen. If Saito were paying attention to Mikaela in the memory it is possible he would know of the reality that Mikaela is linked to Yu, the new information that Mika was counting on for his plan.
 * Learning of the connection between himself and angels, and sympathizing with Shikama Doji's goal to resurrect them, Saito may now prefer allowing the First to succeed. This would be at odds with Yu and Mika's interest in Mikaela's different plan.

Gallery
Manga panels provide a visual overview of the events of chapter 131 with depictions of the characters, Seraph of the End world and scenarios.