I teach 'Jaeyeon', a stuntman who quietly sticks to his principles, and 'Doha', an idol who was cast in an action movie, but he is arbitrarily proud and does not listen. However, Jae-yeon, who is just as stubborn, and Do-ha, who uses tricks, are trained without much effort, and the two eventually become enemies. Then one day, the two bickering as usual was filmed on idol content, and Jaeyeon gains mysterious popularity... and an unexpected situation begins!