Wudao didn't do anything well and lived in a shabby old apartment. He learned from TV that his ex-girlfriend in junior high school got involved in a gang fight for no reason and died. One day, he was waiting for the bus on the platform and fell off the track. Just when he thought he was dead, he found himself back in junior high school 12 years ago.
Later, I met Ri's younger brother Naoko and told him what happened 12 years later and asked him to protect his sister. After the two sides shook hands and made peace, he returned to modern times, and a journey of revenge officially began.