Humanity running a school that's basically a mass human social experiment to siphon off people to fight vampires, the reason they' Reddit·r/anime
Despite being told he isn't ready for a Cursed Gear contract, Yu, Shinoa, and the newly introduced Yoichi Saotome venture into a restricted area of the school to rescue a student possessed by a demon. Owari no Seraph Episode 3
The ending confirms he is now a teenaged vampire with fangs and blue eyes, working alongside the very creatures he once tried to escape. Humanity running a school that's basically a mass