Yuusha-kei ni Shosu: Choubatsu Yuusha 9004-tai Keimu Kiroku

A world where being a hero is the worst punishment, as they are sent to fight against the demon Lords. Criminals are forced to become heroes, and even if they die in the battle, they are revived and sent to fight again. This is the worst punishment for mankind. Xylo Forbartz, once the head of the Knights and now the commander of a unit. During battle, he found a living weapon, Teoriitta, and with that, he became unstoppable.