The prince of Dayan, Murong Jinghe (played by Liu Xueyi), led the Weibei Army to recover the lost territory of Qingzhou. After entering the city, a fire broke out in Qingzhou. It was rumored in the city that Murong Jinghe, the Weibei General, hated the people of Qingzhou for betraying Dayan, so he ordered to set fire to the city after entering the city. As a result, he changed from the Weibei General of the Army of Justice to the Butcher General who was wanted by everyone. Meilin (played by Wu Jinyan), a girl from Qingzhou who lost her loved ones in the fire, vowed to kill the culprit of the massacre. Meilin entered the secret organization's dark factory, took the ink vein poison and became a dead soldier. After years of cruel training, she ushered in her first assassination mission, and this time the mission was to assassinate her biggest enemy, the prince of Dayan, Murong Jinghe, who she wanted to kill day and night. Therefore, Meilin became one of the 100 beauties from Xiyan who were arranged by the Dark Factory to marry into Yan, waiting for an opportunity to assassinate Murong Jinghe. However, what Meilin didn't know was that the owner of the Dark Factory who planned the assassination was Murong Jinghe himself...