Living with his older sister who manages a struggling confectionary shop, Takumi Tsuzuki takes on the challenge of keeping the store afloat alongside his childhood friend, Fumino Serizawa. Their routine shifts when his sister brings home a mysterious and captivating girl, sparking the formation of a quirky group of friends. As secrets bind Takumi and the girls together, a high-energy romantic comedy unfolds, blending male camaraderie with the antics of tsundere beauties.