Yanagi Azami, the protagonist, is transferred to another world. As a physically specialized unique class 'Samurai,' he becomes a member of a hero party and ultimately defeats the Demon King. Returning to Japan, he finds it transformed into a zombie-infested post-apocalyptic world. This novel achieved the #1 ranking in the daily, weekly, monthly, quarterly, annual, and cumulative panic genre rankings! Celebrates 20 million PV! A manga adaptation is also currently serialized!