Su Wanwan was a beautiful woman from a young age, with a stunning appearance. Her father, Su Lingcheng, presented her to the most powerful man in the Dayu Dynasty, Prince Xuan Fu Xiao, in order to compete for status. In order to avoid suspicion, Fu Xiao only agreed to adopt Su Wanwan by his side, and from then on Su Wanwan had a special identity. When Su Wanwan was ten years old, she accidentally fell into the water and almost died on that winter night. She was saved by the young man Fu Yunzhi. Su Wanwan secretly swore in her heart that she would pledge her life to save Fu Yunzhi unconditionally. The two grew up childhood sweethearts and secretly developed feelings for each other, swearing that they would not marry unless they were ministers or gentlemen. In order to allow Fu Yunzhi to grow up peacefully in that cannibalistic palace, Su Wanwan sought the help of Prince Xuan Fu Xiao to become the crown prince. However, Su Wanwan was poisoned by the design and had a relationship with Prince Xuan Fu Xiao. After this relationship was exposed, Fu Xiao no longer wanted to pretend. Fu Xiao had admired Su Wanwan for a long time, and when he had this opportunity, he opened his heart. However, Su Wanwan told her that she had already felt a sense of belonging and shared feelings with Fu Yunzhi. Fu Xiao went crazy and collapsed, paranoid and determined to keep Su Wanwan by his side. Fu Yunzhi's life was filled with hatred, and he wanted to use Su Wanwan to deal with Fu Xiao and regain power. He designed to push Su Wanwan onto Fu Xiao's bed. When all the truth was bloody and exposed, it turned out that everyone had long been involved in a conspiracy struggle. Su Wanwan was a victim of the power struggle, but she was still willing to die for her beloved. In this conspiracy and entanglement of love and hate, no one was able to get what they wanted. Su Wanwan discovered that Fu Yunzhi was using his