Description：Yumi Maiharu (voiced by Reina Ueda) is a cute girl who has just been promoted to high school. Although she is eager to ride a bicycle to and from school, in fact, Yumi does not know how to ride a bicycle. Tomoe Akizuki (voiced by Yuki Hirose) is Yumi's childhood sweetheart. In order to help her friend realize her dream, Tomoe decided to teach Yumi to ride a bicycle. In the process, Yumi gradually became interested in cycling. Shiki Mori (voiced by Sayumi Watanabe) is a teacher in Yumi's class. She loves cycling very much. Under the guidance of Shiki, Yumi entered this rich and colorful new world. Together with like-minded friends, Yumi rode a bicycle with Higa Natsumi (voiced by Fujiwara Natsumi), who has a well-developed sports cell, and Kamikura Fuyone (voiced by Takamori Nazumi), a naive girl who loves photography.