A chance reunion between former school sweethearts — in an attempt to make up for lost time, the lovers, indulging in illicit sex, fall into homosexuality. (Totsuka Ryuu, Misaki Kana, BBAN-531)

Two years after her marriage, her husband was frequently away on business trips, leaving Ryuu to live alone in Tokyo. One day, she unexpectedly ran into her former lover, Kana, on the street. Sensing Kana's predicament, Ryuu offered her temporary accommodation. Although both were married, they couldn't sever their past feelings and, in a moment of impulse, passionately took each other's bodies. Despite knowing it was an illicit relationship, they indulged in their illicit sex, gradually sliding into a romantic relationship…