On her way to her first day of school, Hane Sakura takes interest in her classmate, Onsa Amano, after seeing her ride a motorbike to school. The two go to the school's Bike Club, whose only club member is a silent girl in a helmet named Raimu Kawasaki, who takes Hane for a ride on her Kawasaki ZX-12R. After joining the club alongside Onsa, Hane applies for a motorcycle license, initially struggle with lifting a bike but managing to pull it off after seemingly hearing a voice coming from her bike. During her lessons, Hane comes across another classmate, Rin Suzunoki, who takes her and the others to a bike shop to pick out a bike, only to argue with Onsa when she disses her taste in Suzuki bikes.