User blog comment:AquilaeAltair/OnS Theories. Second Theory (S2) - Sika Madu stole Yu's seraph powers/@comment-36009152-20190821133450

Chained theories, just like Saito who uses chains to attack his foes! Ahem, anyway with Chapter 78, The Dark Ages of Greece, Sika Madu was remembered in (what we initially could have thought) his human form and being eerily nice to Yu. It was sweet Yu apparently just having fun playing all day, yet not so much when Ashera found out what Yu was being used for.

Even now readers, well maybe just me XD are unaware of whether Yu has been around for the 600 years before that time period in the memory. Or whether that was the time Sika Madu came across Yu who as a child was a seraph, or likely was a child slave who was successfully fused with a seraph, but those are just thoughts.

In any case Sika Madu has what he wants in Yu, just that he found himself in a period that may not be best for everything related to his plans (and of course he had the means to test in some areas like controlling Yu then, and the ability to wait until technology could be developed in later ages).

Then as you add, there was a best source of information available, not from humans in certain time periods, rather divine knowledge of which Sika Madu has some awareness of. Not only that, Sika Madu has likely managed to, as this theory title suggests, acquire some of this gods powers possibly through seraphs aligned with it.

That’s what was in mind, whether Sika Madu gained his powers, such as the seraph wings from Yu or directly from god or another seraph before managing to activate them in Yu – to train another seraph for his goals, whatever they truly are.

What suggests it is the former is Sika Madu having a greater degree of control over his powers, certainly not being susceptible, at all, to the seraph fury that is a key distinguishing trait in them, even when things don’t go to plan. Wasn’t a hint of anger when he saw yet another ‘failed experiment’ when Yu took of into the sky, despite modifications to help him control this instinct.

The other detail were those vats containing that spherical black substance, Sika Madu has access to… whatever those even are XD so can certainly imagine him using them to induce changes in Yu for example to bring forth a seraph and then mold it to a better temperament.

Did you mean a deal to share seraph power between Sika Madu and Yu? A deal where the power can be instilled, but controlled so they are both strong (and Yu firmly under control) makes sense. Also like the idea of a deal to allow this angel Michaela to live like a normal human being, and yet would Sika Madu help with that wish since he feels in a nice mood, or because like with Yu he wants something in return? Show's his desire to form his plans extend even further back, he would get his goal of creating vampires (but maybe lost sight of that goal as he changed).

Either way it’s a good suggestion Yu only having part of the seraph gene, it may make Yu easier to manipulate but the main thing to notice would be that some of the gene is gone – stolen by Sika Madu. Further, that the seraph power can be divided, wonder if splitting up the seraph genes constituted the largest taboo that god was furious with? Would explain Sika Madu being described as a cursed being, cursed gear demons, cursed vampires, so many curses all stemming from the worst thing to do, tamper with a seraph.

Interesting if so, that it were not humans (or was if Sika Madu were the first human to do this and began the vendetta seraphs have for humanity) but Sika Madu that drew divine rage. Possible since Yu as a seraph in the dark ages of Greece was seething over humans meddling in what he considered taboo subjects, even back then. Something else if the actual person who done that was Sika Madu stood right next to him, controlling him as well.

Is a nice theory but honestly still on the fence XD if only because not sure who appeared first, Sika Madu or Yu, what they both are, whether they were turned into something else and those areas. Appropriate that a title was the dark ages of Greece, the more we are shown the less we know is so appropriate for here, readers are still being kept in the dark XD