What I have in characters thus far I'm very impressed with!
I've spent some time reading and prepping some notes/questions on your characters:
Jonathan -- Let's consider your relationship with the Æternitas. How would you characterize your feelings towards them? They, for the most part, regard you with a cool politeness; your pacificism, while touching, doesn't sit well completely with the Eldest and the Watcher (the two oldest of the Æternitas); the youngest Æternitas (Nigel, the Shepherd) doesn't quite understand you and your ways, but is more accepting than the others.
Serendipity -- Your numbers look fine, as does your Quirk. However, I haven't seen anything in the way of backstory...
Velmont's Character -- You need a name; the one I've given you is WAY too long, as you can see.

You're in the same boat as Serendipity, otherwise, and I understand you're finishing up exams, so I'll be patient.
Shin -- Did you stop boxing professionally? Your backstory insinuates that you did, but I want to make sure you have.
Adam -- What about your friends and family? I know you're now "deceased," but were others close to you injured in the fire?