Ruri Kujo (Chiaki Kuriyama) is an excellent around-the-clock person who works in the editorial department of an electronic comic. With her perfect looks and the way she behaves, she has been thought to be experienced in love. However, in fact, 15 years ago when she was in college, she was an amateur in love with her boyfriend for a moment. Ruri, who is such a girlfriend, is suddenly invited to drink with her by Ryo Mamiya (Yuta Koseki), a junior at her workplace who is "perfect in both appearance and content" and offers her love consultation. Ruri confides in her, "I can't date anyone for more than three months." This is all the knowledge that Ruri got from shoujo manga. But... when Ruri wakes up the next morning after drinking too much, she sees Ryo next to her. Big panic in Ruri's head. And for some reason, Ruri decides to teach Ryo how to love her. Ruri's excitement for the first time in 15 years doesn't stop with Ryo, who is embodying the image of his ideal boyfriend.
—TV Tokyo