Nursery Slime is a game that follows the strange story of a handsome incel boy with no money and no career. Because he didn’t have any other chance, he became an adventurer. And his first quest takes place in the sewers, where he finds a strange slime. He decides to take the slime home, where suddenly she becomes a beautiful young monster girl made out of blue slime. She immediately falls in love with her maker. And the maker falls in love with her when he finds out that Kuu, the slime girl, can fulfill any kinks and fetishes. On top of that, she can shapeshift into other monster girls.