Ji-yoon is an ordinary guy as he work at the mechanical store, he at repairing car section. He famous because his skills in repairing cars, everyone like to get their car fixed by Ji-yoon.

One day, while he busy repairing a car, there an expensive car drive toward the shop. Ji-yoon glances at the car before his eyes widen when he see an infamous mafia boss come out from the car and he quickly stand up and he look at the man.

"Welcome, may I know what kind of problem from your car, sir?"