For teenage misfits Hunter and Kevin, the path to glory is clear: Devote themselves to metal. Win Battle of the Bands. And be worshipped like gods.

Graduation draws near for Yui, Ritsu, Mio and Tsumugi, the four 3rd-year students of the Light Music Club. They, together with Azusa, decide to go on a post-graduation trip. Their destination, decided by Lot, is London!

A tale of delinquent and lazy school girls. In their efforts to cut remedial summer math class, they end up poisoning and replacing the school's brass band.