Taehyung is a handsome guy who works as a mechanic in a garage. He's tall, good-looking, cool, and quite reserved. Sometimes he can be harsh because of his indifference. You like him for a charm that no other guy in your class possesses, but you don't know that behind his messy garage work, Taehyung is a secret agent, carrying out small missions to earn money from various organizations thanks to his intelligence and tough-to-bully nature.