Rockin heaven

First year high school girl Sawa Konishi transfers to Amabane High School, an escalator school, because she loves the school's cute uniforms. She doesn't realize that the school used to be an all-boys school, with this being the first year it has allowed girls. On the first day, she befriends Akira Nagashima, an aspiring manga artist. She also meets Ran Matsuyuki, the son of the school chairman, who kisses her on the forehead as a joke. As her day progresses, she learns most of the boys in the school don't listen to the teachers, following the lead of Ran.