When their father, the store manager, is hospitalized, eldest son 秋吾 becomes acting manager of the family-run convenience store, and the younger son, a student named 春太, increases his shifts, so the brothers run the shop for a while. However, 春太 gets into trouble by making a move on a female customer, and 秋吾's girlfriend — whom he'd been neglecting because he's busy — unexpectedly shows up for a part-time job interview, and every day is a chaotic mess.?!
