A middle-aged loser travels in time to his school years, and, in order to save the love of his life from future doom, he must become the leader of a dreaded school gang.
A college student spends his year at the seaside town of Izu, having fun on the beach with his school friends.
It follows Takemichi as he travels 10 years back in time to change a key case that can save Hinata, who was murdered again by the Tokyo Manjikai Gang in front of Takemichi.