On the surface, he is a "good-for-nothing young man from the slums" who was retrieved by the Mu family and ridiculed by his adopted brother Mu Yangquan for "not understanding etiquette". In fact, Mu Ge is the uncrowned king of the underground world and the leader of the top international organization Dark Emperor. After returning to the family, he faces his parents' careful balance between biological and adopted children. The third sister Mu Yulu's subtle attitude and Mu Yangquan's escalating provocations did not swallow her anger as everyone expected. Instead, she secretly planned to use her hidden strength to break the illusion of the family's apparent harmony. A contest that will lift the veil of the Dark Emperor and subvert the Mu family's structure is about to begin.