Daisuke Tanaka moves from the countryside to stay temporarily at his aunt Seira's house while job hunting. He has always admired Seira's kindness and poised demeanor, and often found himself thinking about her. One day, as Daisuke was about to enter the bathroom, he discovered Seira already inside, in the middle of masturbating. Trying to suppress his shock and confusion, he froze—but then Seira whispered, "I'm so lonely..." It was no surprise; Daisuke's presence had stirred emotions deep within her. Daisuke could do nothing but accept her feelings.