When his idol, Yuka Kusakabe, unexpectedly announces her retirement at the height of a famous career, Kousaku Hata, who is idol-obsessed, is distraught. This news is too difficult for him to bear as Yuka's biggest fan.
He becomes profoundly depressed and imposes isolation on himself after being shaken to his core. But he receives a welcome surprise on the day his buddies succeeded in persuading him to return to school. It turns out that his cherished idol has transferred into his class as Ringo Kinoshita. Kousaku becomes more determined than ever to seize the once-in-a-lifetime opportunity as a result of this extraordinary development. Kousaku attempts to get close to the girl of his dreams and learn the cause behind her leaving the entertainment business with the help of his teacher and friends.