The heroine Su Wanning was the most inconspicuous concubine in the prime minister's house in her previous life. Because her biological mother died young, she grew up under the patronage of her aunt's mother. She was naive and cowardly, and was eventually taken advantage of by her family. She married a sickly young man to celebrate the occasion. On her wedding night, she was presented to the powerful by her husband's family. She died tragically after being humiliated. Reborn back to the age of fifteen, she returned full of hatred and transformed into a black and poisonous lotus. In this life, she is no longer at the mercy of others. She is gentle and courteous on the surface, but stirs up troubles secretly. She first cleverly exposed her aunt's hypocritical mask and allowed her father to see her true face; then she designed to make her aunt who killed her in the previous life suffer the consequences and her reputation was ruined; at the same time, she used the memories of her previous life to plan a way out for herself step by step and get rid of the fate of being a chess piece.
During this process, she encountered Xiao Jin several times, the young master of Zhenguo Gongfu, who was famous for his violence and cruelty in the capital. Xiao Jin was the executioner who destroyed her entire clan in her previous life, but in this life she was attracted by her calm and ruthless methods many times. Su Wanning originally wanted to stay away from him, but found that no matter how she planned, she could not avoid the entanglement of this evil star. From the initial testing and use of each other to the later cooperation, Xiao Jin gradually restrained his violence and learned to trust under the influence of Su Wanning; and Su Wanning also gained an unprecedented sense of security under Xiao Jin's protection. The two of them joined forces to not only clear out the dirty things within the Su family one by one, but also followed the clues and uncovered a huge behind-the-scenes organization that used the Su family as a pawn and intended to subvert the imperial power. In the end, Su Wanning completely got rid of the shackles of a concubine and stood at the pinnacle of power with Xiao Jin.
