During the Tang Dynasty, Li Longji (played by Ma Junwei) and his aunt Princess Taiping (played by Chen Wei) launched a coup, executed Empress Wei (played by Michelle Yim), who had eroded the legal system, and supported Prince Li Dan to return to the throne. The Taiji Palace seemed to have returned to peace, but in fact, there was an undercurrent... In the court, the situation changed, and Li Longji and Princess Taiping split into two camps, and they were at loggerheads. In the palace, the concubines wrestled, and Wang Zhen (played by Hu Dingxin) and Zheng Chunxi (played by Zhou Xiuna) each fought for their own camps and were deceitful. Some people gave up their conscience for power, and some people gave up everything for their loved ones. Longwu Army Ren Sanshu (played by Ma Guoming) and He Li (played by Xiao Zhengnan), female historian Yuan Yue (played by Liu Xinyou) and Gan Ruoqian (played by Huang Xinying), used their true feelings and true nature to add a touch of romance to the deep palace... The deep palace is full of unsolved cases. After peeling away the layers of mystery, shocking secrets that have been hidden for many years are revealed; at the top of Tai Chi, amidst the treacherous circumstances and hidden behind the high walls, heart-wrenching scenes of love, hatred and vengeance are played out!