Senju Hakke, an overworked corporate assassin, is thrown into a post-apocalyptic world and ends up getting bitten by a zombie. "If I'm going to turn into a zombie anyway, I might as well enjoy a Slow Life to the fullest!" With that resolution, he heads to a convenience store to scavenge for food, where he encounters a clerk named Eru Shikami. It appears she decided that the apocalypse was a "perfect opportunity" to beat her sexually harassing store manager to death. Though terrified, Senju can't bring himself to abandon her and ends up forced to team up with her—. A slapstick zombie action story featuring a former assassin and a Psychopath high school girl surviving the end of the world!!