In the upcoming drama Queen of Ambition, actor Kwon Sang Woo reveals his incredibly muscular back, aka his “valley" back muscles for his rich female clientele. He starts working at a bar for his love Da Hae, played by Soo Ae, and he gains the nickname “God of Back.” If these pics aren't enough and you want to see more of his body, just watch the drama! One netizen wrote that her hands were shaking while looking at these photos. Are your hands shaking too?