Kana and Kaoru have been together since childhood. They weren't lovers, but they were supposed to be more special than anyone else. Five years after Kaoru moved to Tokyo and they got separated, Kana follows Kaoru to Tokyo! However, during that time, She discovered that Kaoru was living with his girlfriend. Without realizing who is the girl, she became friends with her ex-girlfriend. A tingling love story in which single-minded unrequited love is chained together.