Riko, a late bloomer, goes to a matchmaking agency after being invited by her friend. She writes down her preferences, only to receive the disappointing news that there is nobody on file matching her high expectations... However, there is a man that meets all her criteria except for one! Riko is introduced to Arata, her "99% ideal man," and they both fall in love with each other. Gently embraced by Arata, she begins to experience pleasure for the first time. But, a new suitor appears in front of Riko: a domineering CEO named Komiyama. He meets ALL of Riko's criteria, even the one that Arata doesn't have!