Approaching the end of spring break, Ayuko Uehara decides to savor the last moments of vacation by taking a leisurely walk in her neighborhood and stopping at a quaint cafe. Unexpectedly, her tranquility is disrupted when she collides with a clumsy girl. This chance encounter leaves Ayuko puzzled, only to be further surprised when she reunites with the same girl and another at their high school as freshmen. Identifying them as Kanaka Amaya and Saki Iwasawa from the cafe, a bond forms swiftly among the trio. As they navigate the ups and downs of high school life, Kanaka's carefree nature, Saki's boyish demeanor, and Ayuko's laid-back vibe infuse each ordinary school day with whimsical and joyous moments.