Since her friends framed her for the death of the class rabbit in elementary school, Mei Tachibana has given up on other people. But when Mei kicks Yamato, the most popular boy at her high school, in the head (she was aiming for someone else), she becomes enemy No. 1 among the student body, while Yamato himself grows more and more fascinated with her! How long can Mei keep her heart closed off? How long will she refuse to say, I love you?