A 27-year-old wedding planner who has risen to the rank of chief wedding planner, Rinko Amaki (Kaho Takada) has fulfilled all her career goals, earning respect and recognition for her work and for being a “super woman. ”However, she has one deeply guarded complex. She is 27 years old and still a virgin. Meanwhile, Rinko’s coworker Gen Kamisaka (Shota Totsuka) is also 27 years old and boasts the most wedding contracts. Handsome and mysterious, he is considered by many women to be “the perfect man.” By chance, Rinko discovers that Gen is also a virgin and invites Gen to a love motel. Thus, the two agree to become “Ex-virgin partners” and begin practicing for the time they meet the person they will eventually fall in love with. However…?!