Sentenced to Be a Hero: The Prison Records of Penal Hero Unit 9004

Also known as: Yuusha Kei ni Shosu: Choubatsu Yuusha 9004-tai Keimu Kiroku, 勇者刑に処す 懲罰勇者9004隊刑務記録, Sentenced to Brave Punishment, Punishment for Brave Hero: 9004 Corps Prison Record, Sentenced to Hero Punishment: The Service Records of the 9004th Penitent Hero Corps

by Natsumi Inoue, Rocket Shoukai

Sinned heroes will save this world... Being sentenced to Heroship was the most severe punishment one could be given. Heroes would be sent to the frontline of a never-ending battle against the demon lords. Not even death could relieve them on their duty. There was no end to prison sentence. Even if they fought for a hundred years, they would still not be released. Only by killing every last demon lord would they be pardoned for their crimes. And...that was no more than a pipe dream. However, things might be different for XYRO, Penal Hero Unit 9004. He accidentally meets a goddess...and she asks him to be her knight! (Source: KADOKAWA Global)