Kwon Sang Woo will appear shirtless on the first episode of SBS "Yawang."

According to the production company, Kwon Sang Woo is to show his back muscles on the first episode of "Yawang."

In the drama, he works in a host bar in order to make money to pay for Soo Ae's school tuition.

While filming for the drama, Kwon Sang Woo yelled like the hulk and showed off his body.

His company stated that he worked out for two months for a scene that will be shown for five seconds in the drama. An official of his company said, "he exercised in the gym for two hours and had a strict diet set by a professional."