Seraph of the End: Guren Ichinose: Catastrophe at Sixteen, Vol. 6

Prequel to the original hit manga series, Seraph of the End! Detailing the events 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.