Yoi Takiguchi is a girl who's called a "prince" because of her beautiful appearance and the stylish way she carries herself. She meets Ichimura-sempai, who is also called a prince at her school and somehow they start a trial relationship. At first, Yoi was prepared to find out what her sempai was really like, but as she gradually noticed a change in her own feelings, she has become more confused day by day. On the other hand, Ichimura-sempai is realizing that Yoi is starting to hold a much larger place in his heart than before. And with all this going on, Yoi meets a new prince at her job...?!