Her husband stays out until late and their marriage has gone cold. Kanna starts night school to get a qualification and live on her own. The classmates are all young and she cannot settle in. One day she rides the train home with classmate Hajime, who is also older than the others and also does not fit in. They spend more and more time alone at school, in the library, and on the train, until the feelings she thought she had forgotten wake up and they start having sex.