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

"Sentenced to Be a Hero" depicts a world where the worst criminals are sentenced to become "Heroes," forced into mandatory military service against the Demon Lords. These convicts are immortal, resurrected after death to continue fighting. Xylo Forbartz, once the head of the Order of the Holy Knights, now leads a unit of these deplorables on the front lines. He encounters Teoritta, a powerful weapon, and forms a pact with a goddess to survive the brutal war and exact revenge on those who wronged him. The anime explores themes of punishment, redemption, and the cost of war within a setting of constant conflict and intrigue. The narrative follows Xylo's journey through this harsh reality.