Worried about the future of their son, who has poor grades, the highly skilled private tutor Reina Nanjo Reina arrives at the request of his parents. As soon as she gets to work, Reina discovers that the student is a virgin, and begins the lesson by pressing her body against the student and whispering sweet nothings into his ear. She rewards the student with her skills that have captivated countless men every time he solves a problem. She even dangles a carrot in the hope that if he works hard, he will be able to have his dream first experience. Thus, just as Reina had planned, the virgin studies furiously towards his goal of losing his virginity.