Revolves around Futaba, a girl who was in love with a boy named Ko Tanaka in middle school. However, it did not work because he transferred but in high school, her world is turned around once again when she meets him again.

At the end of the first year of high school, Yoshioka Futaba meets Tanaka Kou who was her first love. In their middle school days, they attended the same school, but he suddenly transferred to another school. Three years later, he appears in front of her again with the different last name of Mabuchi Kou. His personality also seems to have changed from warm to cold. He is like a totally different person from three years ago. Yoshioka Futaba slowly learns what happened to Mabuchi Kou for the past three years and she become to have feelings for him again.

At the end of the first year of high school, Futaba Yoshioka (Natsuki Deguchi) meets Kou Tanaka who was her first love. In their middle school days, they attended the same school, but he suddenly transferred to another school. 3 years later, he appears in front of her again with the different last name of Kou Mabuchi (Kaito Sakurai). His personality also seems to have changed from warm to cold. He is like a totally different person from 3 years ago. Futaba Yoshioka slowly learns what happened to Kou Mabuchi for the past 3 years and she become to have feelings for him again.—AsianWiki