At a secondary school entrance ceremony, Kotoko Aihara, a pupil who isn’t particularly bright, spots the handsome Naoki Irie. She falls in love with him straight away. At first, Kotoko doesn’t tell him how she feels, but she finally gets the chance to tell him how she feels. Unfortunately, Naoki rejects Kotoko, saying, "I don’t like stupid girls." One day, Kotoko Aihara’s house is severely damaged by a meteorite. So Kotoko Aihara and her father decide to go and stay with a friend of her father’s. When Kotoko Aihara moves into her new temporary home, she is surprised to discover that Naoki Irie lives there too.