Dong-hyun was a high school student who had very little: a perpetually stained uniform, a love for snacks, and a reputation for being the school’s favorite punching bag. He lived by one rule: Don't get noticed.
Pan-soo (in Dong-hyun’s body) looked in the mirror and screamed—not because he was a kid, but because he had "no muscle definition." He couldn't go back to his gang looking like a marshmallow.
The 2019 South Korean film The Dude In Me (also known as The Guy Inside Me