Cho Sung-hee

Dong-hyun is a high school student. One day, he falls from the rooftop and bumps into Pan-soo who is a passerby. Pan-soo is a member of a criminal organization. When the two men wake up in the hospital, they discover that they have switched bodies.

At the brink of his death, the CEO and founder of an IT company's spirit gets stuck inside a smartphone and enlists the help of a young man to do favors on his behalf in exchange for 10 billion won.