Summary:
Kotoko Aihara has been in love with Naoki Irie since they both started high school. There is a problem however; she is in the school's worst class, Class F, and he is in the school's top class, Class A. When she finally musters up the courage to confess her feelings to him, through a love letter, he rejects her outright, saying "I don't want it!"
When Kotoko's house is ruined in an earthquake, her and her dad decides to live with her dad's childhood friend. However, it seems that the son of this man is none other than Naoki Irie; the very person who rejected Kotoko so outrightly. Now living together, the lives of Kotoko and Naoki will change.