Will corporate animals save the world? Akito Fujimura is a company slave that he and others recognize as a company slave. When I returned home exhausted from not sleeping for days on end, I found something that looked like a dungeon growing in my garden. Suspecting that this is a project for a TV show, he goes inside and encounters a goblin. Still, when I tried to fight without getting upset, I defeated him normally...!? The world changed after that day. Monsters appeared from the suddenly created dungeon and started roaming the city, transforming the world into something like a game. In such a situation, Akihito progresses through his race evolution by simply training in the dungeon, and climbs the stairs to become the strongest!! This is the worst and worst story of heroism, told by dangerous people who decided to change the world. A story of how a race evolves from company savings to become the strongest!! It's time to start!!!!!