Kijima, the school's most feared Yankee, has a secret. He believes in such things like "fortune-telling" and "fate"—that is to say, he has a maiden's heart. One day, Kijima met with his admired fortune-teller and was told that he would soon meet his destined partner. To his surprise, the one who appears before him is his classmate, Kousaka, who has always been friendly towards him. "It can't be! This guy is my destined partner?!" From then, he realized that for some reason, the time that they spend together kept increasing. Not only that, but Kousaka's advances on him are also getting more and more intense as the days go by.