“My dream is to go to college.”

Kim Deok-pal, the boss of the Chilseongpa gang, who is uneducated and has a desire to have a school life, dies in a traffic accident while trying to save a boy, Song I-heon, who jumped from a bridge one day rainy.

"I hope that boy survived."

When he wakes up, he finds himself in Song I-heon's body. Deok-pal discovers that the real I-heon was being bullied and outed, which is why he tried to kill himself. Instead, he decides to take revenge for him and goes to the high school where I-heon studied. But Choi Se-kyung, I-heon's crush, begins to suspect him...

“You’re not I-heon.”