Despite promising to give up rock after getting into an all-girls school for the wealthiest young ladies in Japan, Lilisa Suzunomiya decides to form a secret rock band with her classmate, Otoha Kurogane. There's just one little problem... Lilisa's stepsister discovers her secret! Can Lilisa convince her hater of a stepsister to keep things under wraps or is Lilisa's rock'n'roll career already over?!