User blog comment:AquilaeAltair/Ons Theories. First Theory (S3) - The black matter, something that adquired a physical form/@comment-36009152-20190607002141/@comment-36009152-20190620170207

That’s a good way to narrow down the possibilities and modifying his instincts is certainly a likely one! Vampires and Demons would probably get there innate ability to heal serious injuries from the seraphs themselves so Yu may not need an external essence such as that black matter to deal with what happened, and yet going down the control route it's just interesting to note that it is a type of creature (if that is what it is) that can mollify a seraph and affect it’s behaviour. Would assume it would take advanced technology to even have a shot at doing this but hey, dark ages of Greece is probably not a technological powerhouse and yet Sika Madu has achieved his purpose with something that at least needs to spend time suspended in a fluid filled container. So there are more potent magics like this in the world even back then.

With the 600 years he may have been referring that it took that long to gain Ashera as a successful test subject but can’t say for certain. Was just thinking of the age aspects that maybe people would notice that Yu who is brought along with him is never growing, and him possibly entering a growth spurt was discussed unless it was idle talk and Sika Madu knows Yu is going to stay like that as he has done for 600 years. Then again Sika Madu may have been using memory tampering there or simply moving locations.

It is very convincing that angel falling to earth, wandering it for a while and wanting blood – Michaela = Sika Madu! When he said it was hell he meant it was for him in his state having to do the same thing over centuries to achieve whatever it is he wants, and also a reflection on how he see’s the humans state around him.

Does Sika Madu seem happy that he has gotten a third test subject? It was telling that with Ashera a third was made; all three were together yet Sika Madu was elsewhere with his prized seraph. Maybe Urd, Rigr and Ashera are not the desired outcome for test results but a by-product of his actual test with trying to fully control the seraph Yu. Maybe vampires are needed to create more black matter (it does have some demon traits largely the possession similarities and black non corporeal forms, and of course vampires can turn into demons). Using Yu to create vampires to change them into something that can further mould Yu’s behaviour could be what is going on.

Yu in his anger references humans dabbling in that which is taboo which is funny since it seems to be only Sika Madu carrying out truly taboo subjects such as the ones he is partaking in! The taboo could just be talk, the seraphs seem set to punish humans just for existing, or maybe there was something humans were doing back then that was bad enough to draw seraphs to the world… likely the former really XD