Aira, Shima, and Hana are three demon females that reside in the human realm. They aspire to be idols by leading a brilliant school life full of efforts and friendships. Climbing those stairs is a heart-pounding animation... Not! They don't know the solution to the question, "What is an Idol?" and go along the path to being an idol with tries and errors. Rocket-sensei will gently (and sometimes sternly) guide them to become true idols in their own distinctive manner... Certainly.