“Strength and power, that’s all there is in this world.” As someone living a poverty-stricken life, Yunfei, an orphan of the Donghua Clan, is considered the weakest in the world simply because he lacks power. To escape this wretched fate, he chooses the path of a eunuch. Yunfei receives the seed of the ultimate martial arts technique, the Extreme Yin Art of Bai Yihong, and becomes part of the emperor’s special forces as part of the [Great Murim Extermination Plan]. In this era of great upheaval, amidst constant intrigues and fierce power struggles, the story follows the escapades of “Yunfei”, a master of deceit and cruelty, as he navigates the world of martial arts with his ice arts!