Born and raised on Beta Star, Comet-san is a tomboy and a bit of a scatterbrain. Ordered by her star teacher to train on Earth, she ends up living as a helper in the home of the Kawagoe brothers, Takeshi and Koji, through a series of mishaps. She always uses her magic for silly reasons, earning her another scolding from her teacher. A juvenile fantasy (imaginary drama for boys and girls) where she solves troubles with her magic baton.