• Heroine: Su Qingyuan (modern name: Lin Wan). 28 Years old, he was the operations director of an Internet company in Shenzhen. He is rational, calm, has high emotional intelligence and good eloquence. He is good at data analysis and the game of people's hearts. After traveling through time, she became the fourth concubine of the Yongning Hou Mansion. She was originally weak and sickly, and was treated harshly by her aunt.
• Male protagonist: Xiao Jue. Titled Prince Jing, he is the emperor's younger brother. He holds a large number of soldiers and has power over the government and the public. With a handsome appearance, a cold and taciturn personality, decisive killing, and not close to women, he is the "living king of hell" that everyone in the capital respects. He is traumatized, extremely insecure, and extremely possessive.
