Takara Itosaki's boyfriend of two years, whom she had been thinking of marrying, suddenly dumps her. He states, "I'm not sure if you like me anymore because you don't get jealous." She has liked and cherished...

Tsukiko Yano is a transfer student at a highschool where she doesn't find anyone or anything interesting. That is, until one evening when she sees her classmate Aya Utsumi swimming in the school swimming pool...