Wataru Sajo has been pestering and asking Aika Natsukawa, a beautiful girl in his class, to go out with him and get turned down. One day, a flying soccer ball swiftly changes his personality and comes to the conclusion he is not worthy of her and begins to distance himself from her. However, Aika mistakenly thinks he now dislikes her, and she starts to get involved with him. This is the start of a romantic comedy when two classmates struggle to convey their feelings, especially when other girls begin to take notice of Wataru.