On a street corner in Yokohama's Golden Town, a man and a woman meet by chance. With only 15 minutes marked by a kitchen timer, they share a brief encounter, seeking emotional connection within this fleeting moment. Named Yuuji and Aya, they are drawn into a transient romance, savoring the warmth of the present. But is their feeling genuine, or merely a temporary illusion? Their relationship is deeply explored within the constraints of time.