He is Iizuka, boring man. He don't have his strong point, like studying and sports. He also don't have luck.
He love Ayukawa who is his high school classmate and colleague at work.
Even if he entrance into a training hall by Higashi who is his junior, there is no change in his boring life.
One day Iizuka sink in his bathroom. When he wake up, he is in his highschool.
He will be able to time travel. If he do something in his past, the future will change.
He aims to become a love with Ayukawa.
Actually, what is necessary to face in his?