Komiya Chihiro is an energetic elementary school student who lives with his mom. Chihiro is very good at doing housework and chores, and his mother's motto is No work, no food. After his mother suddenly dies, a man named Takatori Madoka who claims to be his uncle shows up and asks Chihiro to come live with him. Chihiro initially refuses, but when he sees the horribly dirty state of Madoka's rich house he decides to start cleaning it. Then Madoka makes another offer to Chihiro: that he comes to live with him, but in exchange Chihiro will do the housework. Chihiro accepts this deal, but suddenly finds himself in a maid uniform.