Sixteen-year-old Guren Ichinose enrolls at First Shibuya High, a school for sorcerers, expecting nothing but the usual suppression from the Hiiragi family, who run the powerful Order of the Imperial Demons. What he doesn't expect is running back into his childhood friend Mahiru Hiiragi, whose reappearance in his life stirs up feelings he thought he'd buried along with his old life. Set years before the world ends in Seraph of the End's main story, this prequel light novel follows Guren's path from an overlooked outsider toward the reputation that later defines him.