Maiharu Hiromi has relocated from Nagasaki to Kamakura at the beginning of her high school years. Kamakura is an enchanting city with a picturesque view of the sea and Mt. Fuji, which excites Hiromi as she looks forward to exploring the area. Although Hiromi hasn't ridden a bike since childhood, she decides to ride to her first day of school despite not being proficient in it. As fate would have it, she collides with Tomoe, who assists her in learning how to cycle. It turns out that Tomome is also in her class and their teacher is a cyclist too. Now, Hiromi's thrilling high school journey filled with new friendships and the joy of cycling is about to begin!