Sentenced to Be a Hero, Vol. 1 (light novel)

Heroism, a punishment for only the worst criminals. Those sentenced to the fate of a hero are forced to fight on the front lines against deadly centers of contagion that rot the land and turn its creatures into roving armies of violent beasts. And if a hero dies, their only reward is being brought back to life so they can continue the never-ending battle. But when Xylo Forbartz, a member of Penal Hero Unit 9004 and a convicted goddess killer, comes face-to-face with a new goddess, the pact they forge might just be enough to change the world