The boyfriend she lives with is going on a one-month business trip, and he and Ruri promise each other to abstain for that month. Ruri's sex drive threatens to explode during the long, painful period of abstinence, but she manages to endure it. Finally, the day before her boyfriend returns, his junior colleague comes to their home to pick up some documents... Having felt liberated by abstinence, Ruri carelessly talks to her junior without wearing a bra, and his excited gaze makes Ruri aroused as well, leading her to have an affair with him! Feature
