MIDICITY is a musical metropolis. Maple Arisugawa, the CEO of a music agency, scouts Cyan, a kitten girl dressed in gothic lolita clothes. From there, she meets Chuchu (a play on the sound rabbits make), the honor student rabbit girl, Retoree (from "Retriever"), the net geek dog girl, and Moa, the extraterrestrial sheep (?) girl. They establish the band "Plasmagica" and strive to reach the top of the globe.