One day after school, he discovers and impulsively steals the gym clothes of Nanako Saeki, the classmate he has a crush on. However, a lonely girl named Sawa Nakamura happens to catch him in the act. Nakamura blackmails Kasuga into a "contract," under the threat of revealing his secret.

    Thus, she’s had to grow up in a “foster home” of sorts, and was raised by nuns. On her 16th birthday, Aria recieves a present in the mail– a ring from her “Daddy-long-legs” (a man who protects someone from afar while they’re growing up)! All of a sudden Aria’s life is thrown into chaos. Men try to run her over with cars, shoot her, and kidnap her. Relief comes in the form of Canon, who claims he’s her bodyguard. But can he keep Aria safe forever?

    

    After an unexpected event, Risa now finds herself entangled with the most popular boy in her grade, Yuugure. Could this be the beginning of love for Risa...!?