After Time Travel and Rebirth, I Came to the World of Strange Stories About Rules

The protagonist is a veteran. After working as a scout in the army for five years, he retired because he could not find a suitable job. He worked in many professions, whether it was firefighting, auxiliary police, security, bodyguards, or even a funeral parlor staff. Because of an accident, the protagonist was unexpectedly reborn and entered another parallel world. What he did not expect was that this was a world of rules and weird stories. Only by obeying the rules could he survive.