The two big-breasted beautiful sisters are the center of attention in the class, and the slave who serves as their wallet. Matou Kei, a gloomy and unattractive otaku, was like an extra to his childhood friends, sisters who live next door to him. The sisters are so close that they often come to his room to hang out, however, when someone asks if they are dating, they deny it. Remi: "No, no, no...we're not dating." Yuuka: "Kei? We're just childhood friends." However, deep down, they both want him to double-date them. --But Kei can't seem to make the move. Kei: "Your first choice for career is 'sugar daddy dating'?...That's terrible." Kei, who is at the mercy of the sisters' selfishness as usual, is busy going to the sugar daddy dating scene with them. Yuuka: "Let's do sugar dating, it's a contract for money and body. There's no need to think about it too hard, let's just accept it and try having sex." Remi: "...It'll be more convenient for me to practice on you, it won't be scary if something happens." - The sisters who are only "sugar dating" with the main character. A new two-timing love story that begins under the guise of "sugar dating"!