Song Zhiyan, Prince of Qi Yuan Dynasty, fifteenth year
He has established a firm foothold in the turbulent court at the age of 18. He has a cold temperament and sharp methods. He only sees power and chess games. In the Hanyue Kingdom of the Western Region, he accidentally rescued a 12-year-old orphan girl who fell into the water and was unconscious, suffering from high fever and gibbering. It was originally a thought of compassion, but after he woke up, he was so entangled that he couldn't get away. Seeing his superb martial arts and extraordinary bearing, the girl stalked him to recognize him as her teacher.
After reluctantly agreeing, he took her back to Qiyuan, and initially stayed with him as a maidservant, strictly teaching Wen Tao martial arts, hoping to polish her into the sharpest hidden blade. Unexpectedly, this girl is ambitious and has seen many women trapped by fate, so she wants to open a building "where girls can sing and dance with peace of mind". Song Zhiyan raised his eyebrows and chuckled, then waved his hand and bought the largest brothel in the capital, renamed it "Yanyan Building", and let her do whatever she wanted.
He never thought that this romantic place that seemed to only know how to sing and dance would become his intelligence network all over the world; nor did he think that the little girl who had huddled in the corner, soaked all over, would occupy more and more weight in his heart.
At the same time, Xie Chenyu, who covets the position of prince, is pressing forward step by step with the help of the forces within the DPRK and hidden foreign forces. Once he accidentally stepped into Yingyan Building, he was attracted by the quirky and vindictive girl boss. A chess game centered on power, people's hearts and secret wars became more complicated and confusing because of her existence.