ereri

I kinda remember a description of it but my memory is lent the best so I'll list key points
-it's an action manga where certain teens have special powers to defeat these monsters
-the main character is a weirdo and he's one of those special people that fight the monsters
- main chara has black hair and big eyes and I remember one scene where he jumps from a school window
But that's it

I've read a lot and I'm trying to find new ones :3 (alpha,beta,omega)