S1 • E1
On her first day at Okanoue Girls' High School, a school that allows students to ride motorcycles, Hane Sakura takes interest in her classmate, Onsa Amano, after seeing her ride her bike to school.
S1 • E2
As Rin manages to get her bike license, she remains angry at Onsa over her prejudice towards her Katana, but is awed by Hane's honest compliments. Later, a freshman named Hijiri Minowa comes to join the bike club, giving Hane the idea to have Onsa and Rin settle their dispute with a chicken race.
S1 • E3
With Hane now having her license, the girls visit the Nicoichi Motors used bike store.
S1 • E4
The girls plan a trip to Hokkaido, with Rin reminiscing about when she went with her father as a child.
S1 • E5
The girls soon reach Cape Soya, where they come across their teacher, who is heartbroken over a recent breakup.
S1 • E6
As the Bike Club makes plans to hold a race during the upcoming school festival, Tazuko recalls how Raimu won a lot of money through betting only to spend it on a load of bikes her friends considered to be ugly. Later, Hane learns about the various ways people mod their bikes and the difference they actually make.
S1 • E7
With the culture festival underway, the girls tour the school in order to advertise the bike derby.
S1 • E8
With her birthday approaching, Hijiri reveals she has a motorcycle license purchased from a foreign country.
S1 • E9
Chisame Nakano, Yume's friend who has enjoyed bikes since she was a child, takes the entrance exam for Okanoue, struggling to keep her mind away from bikes during the test.
S1 • E10
The girls come across Chisame trying a bike game at the arcades, where Hane invites her on a tandem ride. The next day, Chisame becomes worried about exposing her complex over having short legs that can't reach the ground easily.
S1 • E11
Onsa inadvertently drinks some of Rin's saliva and gets infected with a rare disease that causes her to become obsessed with Suzuki bikes.
S1 • E12
Hane finds herself in a world where motorcycles don't exist and all her friends ride bicycles instead.
S1 • E13
While taking a drive on the highway to try a "100-mile blend" of coffee, the girls stop by a service area, where they find cans of coffee with motorbike figurines included. Later on, everyone's bikes simultaneously break down due to an alleged curse.
Rin Suzunoki
Onsa Amano
Yume Sakura
Hayakawa
Onsa's Father
Chisame Nakano
Tazuko
Saruyama
Rin's Father
God