Tsuyoshi, who has started living alone since getting a job, is captivated by Rinka, a married woman living next door, wearing a dress shirt on her balcony under the moonlight. The two gradually grow closer, and on days when her husband comes home late, they even have dinner together. Then, one day, he hears the husband yelling from the house next door. Worried, Tsuyoshi opens the front door to find Rinka standing there alone. Tsuyoshi hides her for a while, and when Rinka runs away from home with only the clothes on her back, he lends her his dress shirt...