Owari no Seraph: Ichinose Guren, 16-sai no Catastrophe

A short while before the apocalypse, 15-year-old Guren Ichinose enrolls at Daiichi Shibuya High, a magical training school. Witness his trials as he must hide his true strength even as he is trampled on at a school for the insufferably privileged. [Kodansha]