Koguma, a reserved second-year high school student, possesses nothing—no parents, hobbies, friends, or goals. One afternoon, on her way home, she visits a vehicle shop hoping to acquire a motor scooter. With only enough money to make ends meet, she is disheartened by the price tags and prepares to turn back. However, just as she is about to leave, the shop's owner offers her a pre-owned Honda Super Cub for ten thousand yen. Believing that the motorcycle will help brighten her monotonous world, she accepts the deal. As Koguma journeys through her town on small adventures with her Super Cub, she begins to build irreplaceable friendships and eagerly advances toward her new life.