Chouko Manaka is the next heir to the prestigious Manaka family. Now she is entering high school and she has had enough with being surrounded by bodyguards, who have prevented her from making any friends. Her father is still worried though, so he makes a deal with her. If she transfers to Mizuno-o high school, where many of the students are also studying to be shinobi and can get one of these people to be her right-hand man by graduation, he'll consider her to be able to make decisions for herself. On the first day of school Chouko meets the son of their butler, who suddenly declares that he wants her to be his master?!

After drinking at home with Murakami, his best friend from university, Minowa woke up to find Murakami riding him. Tempted by the erotic expression on Murakami's face, Minowa unconsciously extended his hand… "You don't have to do anything. Just be good and lie down." Put in this appealing situation, Minowa's best friend, who's cuter than any woman, unexpectedly forbids touching! Above all, he's the only one who knows the real Murakami, seen as a cool genius in university. Isn't it impossible not to have any feelings for him after being in that sort of situation?! "Even I want to make you feel good!" However, there's a reason why Murakami stubbornly rejects Minowa's touch; one that he doesn't want Minowa to find out no matter what.