Responses
i didn't think sekai oni and afterschool nightware were really 'survival' though. i haven't read afterschool war activities because i'm not a manwhua reader lol.
otherwise, yes, i'll add the ones you recommend.
sorry sorry, i mean afterschool nightmare as survival not sekai oni
lol, my mistake ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄
Bokurano aside, there is Shadow Star from Mohiro Kitoh, also a survival. There are other survivals like Sekai Oni, Afterschool Nightmare (i guess it is one too?), Afterschool War Activities also get in the criteria... hmm there are more that are actually good too.