In her second year of high school, the introverted Koguma leads a mundane life devoid of family, hobbies, friends, or aspirations. While browsing a vehicle shop one day with limited funds, she considers buying a motor scooter but is discouraged by the high prices. Just as she's about to leave, the shop owner offers her a used Honda Super Cub for a mere ten thousand yen. Seeing this as a chance to brighten her dull existence, she seizes the opportunity. Riding her Super Cub around town, Koguma embarks on small yet meaningful adventures, forging valuable friendships and embracing the promise of a fresh start.