Jun, a 33-year-old wife trapped in a sexless marriage, agrees to spend the night at an adult college student's home with only one condom. They quickly use it for their first round, but when he wants more after cumming once, she agrees to sex without protection. They pretend the second round never happened, yet neither can forget the raw pleasure. With her departure time approaching, they give in to each other once more, leading to another unprotected encounter and a second creampie.