A dark fantasy where Heroes-criminals sentenced to heroism service in a penal military unit-must wage war against a demon king's army.

Haruka Sakura has no interest in weaklings, only the strongest fighters. Starting at Furin High, a school known for student brawlers who protect their town, Haruka seeks to battle his way to the top.

Bearing wisdom from a past life, Arthur Leywin is reborn on a magical continent, facing rival factions and a looming war as he forges his destiny.