In the flourishing Yin Dynasty, several mystical murder cases by fire occur in Daye, the capital. All of them are strange, terrifying, and mysterious. Shi Hao Xuan from Tianzhao Prefecture and Xuan Kun of the City God Temple get involved to find out the truth. Solving the enigmas, they discover the truth about the Fire Case of 20 years ago that exterminate the whole family, while a secret file reveals their identities. A series of delicately planned conspiracies are unveiled amidst hatred and ambitions.
With graduation near, Cheng Xin proposes to her boyfriend Zheng Qian, but he rejects her, feeling unprepared for marriage or success. When he also refuses her help in finding a job, Cheng Xin secretly creates an opportunity for him to prove himself. As Zheng Qian struggles to find his path, their relationship is quietly tested by love, pride, and ambition.
