Owari no Seraph Wiki
Owari no Seraph Wiki

"Cause for Madness" (暴走のリュウ Bōsō no Riyū?) is the nineteenth chapter of the Seraph of the End: Vampire Reign manga series, written by Takaya Kagami and illustrated by Yamato Yamamoto.


Shinoa Squad is out in the city (presumably Shinjuku), and Yoichi manifests his demon, Gekkōin, to kill three nearby horsemen. Shinoa and Mitsuba explain the differences between demons that manifest and those that possess. Yu attempts to learn how to use his demon before Kimizuki. He cuts his hand, ordering Asuramaru to drink his blood. The squad prepares to battle a berserk Yu, but Yu faints.

Kimizuki asks the squad about telling Yu about happened to him during the vampire attack, and Shinoa agrees to tell Yu everything when he wakes up.

In Sanguinem, Mika is in pain and desperately thirsty for human blood.


List of characters in order of appearance:


In the ruined city of Shinjuku (presumably), Yoichi scouts for monsters. Spying three horsemen, Yoichi manifests his demon, Gekkouin, and eliminates all three at once. Yoichi had such a high aptitude for controlling gear that he was able to do a manifestation without any training. He says that he and his demon talk when he goes to sleep, and manifesting it happened naturally. Yu says his demon, Asuramaru, only comes out when trying to take over Yu's body.

Shinoa and Mitsuba agree that they are far enough away from civilization to avoid any problems if anyone goes mad, and everyone awkwardly looks at Yu.

Mitsuba and Shinoa explain that a soldier must acclimate to the gear slowly or else the demon will take over. This usually takes half a year, but they don't have the time, and the boys appear to be ready anyways. Shinoa says that Yu and Kimizuki most likely have aggressive, violent, and disobedient demons, which are characteristic of possession types. They will be suitable for melee fighting. Manifested demons, which Shinoa, Mitsuba, and Yoichi use, vanish and appear at will.

Yu and Mitsuba spar, and Mitsuba manifests her demon, Tenjiryū, from a distance. Manifestation-types use special abilities. However, using the ability leaves the bearer vulnerable. Without someone able to defend the bearer against melee attacks, this is extremely risky in battle. Each demon manifests best a certain range: Yoichi's Gekkōin is long-range, Shinoa's Shikama Dōji is mid-range, and Mitsuba's Tenjiryū is close-to-mid range.

In order to become close with their demons, Yu and Kimizuki must call on their demons, cut themselves, then order their demons to drink their blood.

Yu goes first. The squad prepares for battle since Yu may go berserk at any moment, but he faints. Shinoa says that it may be another 20 hours before he fuses with his demon, and he may go berserk at any time. Kimizuki asks about informing Yu about what happened on the battlefield. During their interrogation, Yoichi and Kimizuki only told the higher-ups that they did not know anything and were just following Shinoa's orders. If they are genuinely friends and family, Kimizuki wants to tell Yu the truth. If that is only a front, then he will say nothing because he needs the money, but he will only work for the money. They agree to divulge the truth to Yu when he wakes up.

In Sanguinem, as children play nearby, Mika sits on the streets, sweating and gasping in pain as he fights his thirst for human blood. He says Yu's name and mutters that it hurts.


Image gallery: Cause for Madness

Manga panels provide a visual overview of the events of chapter 19 with depictions of the characters, Seraph of the End world and scenarios.



v  d  e
Volume 1 Chapter 1Chapter 2Chapter 3
Volume 2 Chapter 4Chapter 5Chapter 6Chapter 7
Volume 3 Chapter 8Chapter 9Chapter 10Chapter 11
Volume 4 Chapter 12Chapter 13Chapter 14Chapter 15
Volume 5 Chapter 16Chapter 17Chapter 18Chapter 19
Volume 6 Chapter 20Chapter 21Chapter 22Chapter 23
Volume 7 Chapter 24Chapter 25Chapter 26Chapter 27
Volume 8 Chapter 28Chapter 29Chapter 30Chapter 31
Volume 9 Chapter 32Chapter 33Chapter 34Bonus chapter
Volume 10 Chapter 35Chapter 36Chapter 37Chapter 38
Volume 11 Chapter 39Chapter 40Chapter 41Chapter 42Chapter 43
Volume 12 Chapter 44Chapter 45Chapter 46Chapter 47
Volume 13 Chapter 48Chapter 49Chapter 50Chapter 51
Volume 14 Chapter 52Chapter 53Chapter 54Chapter 55
Volume 15 Chapter 56Chapter 57Chapter 58Chapter 59
Volume 16 Chapter 60Chapter 61Chapter 62Chapter 63Bonus chapter
Volume 17 Chapter 64Chapter 65Chapter 66Chapter 67Chapter 68Chapter 69
Volume 18 Chapter 70Chapter 71Chapter 72Chapter 73Chapter 74
Volume 19 Chapter 75Chapter 76Chapter 77Chapter 78Chapter 79
Volume 20 Chapter 80Chapter 81Chapter 82Chapter 83Chapter 84
Volume 21 Chapter 85Chapter 86Chapter 87Chapter 88Chapter 89
Volume 22 Chapter 90Chapter 91Chapter 92Chapter 93Chapter 94
Volume 23 Chapter 95Chapter 96Chapter 97Chapter 98
Volume 24 Chapter 99Chapter 100Chapter 101Chapter 102
Volume 25 Chapter 103Chapter 104Chapter 105Chapter 106
Volume 26 Chapter 107Chapter 108Chapter 109Chapter 110
Volume 27 Chapter 111Chapter 112Chapter 113Chapter 114
Not in volumes Chapter 115Chapter 116