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…?!


雨树凛子（高田夏帆）27岁已经升职做到婚礼策划师的主管职位，得到了让人羡慕的地位和名誉，成为了谁都认可的“完美女人”。但是她也有一个难以启齿的秘密，27岁了还是处女。
另一方面同僚的上坂弦（户塚祥太）也是27岁，公司合同签约业绩第一位，集女性好感于一身的帅气迷人男性。
一次偶然的机会凛子知道了弦还是处男后，约了弦去情人旅馆。两人决定签订“解决－无经验合作伙伴协定”，为了将来能够找到真正喜欢的人，开始练习做爱…!?