Koji started living alone upon getting a job and was captivated by his neighbor's married woman, Rinka, in her Y-shirt on the balcony under the moonlight. Since then, the two grew closer, and they would have dinner together on nights when her husband came home late. One day, Koji heard the husband's shouting from next door. When he opened the front door out of concern, he found Rinka standing there alone. Koji decided to shelter her for a while and lent his Y-shirt to Rinka who had run away wearing only what she had on…
