The more I see this the more I am starting to doubt that Yodaka is actually an ordinary human who just happened to be ridiculously good at fighting. I wanna know what his backstory is, there has to be something there. Like a science experiment, or an exiled and erased clan, or something. Sometimes part of these stories is to pointedly not have the protagonist have some sort of special past, but Yodaka is really diverging from what I can believably accept as 'yeah he's just a mutant.' lol
Even the glasses dude, who was former squad one and from an anti-bloodline specialist clan, seems to be dumbfounded by Yodaka's talent. He goes past just someone who is gifted and into being a true aberration.
Aoi's obviously very similar to the girl in Yozakura, where she's pretty much just an ordinary girl but her blood can awaken or enhance special abilities. It was kind of high on my suspect list as a reason why she would be so important and valuable.