The fox demon Xiao Wei (Zhou Xun) was frozen in the ice hell for five hundred years because she violated the rules of the demon world by saving people. She was in great pain. In the face of fate, Xiao Wei who escaped from the ice cave had only two choices: either be caught by the ice tongue of the ice hell, or get a "voluntary dedication" heart to truly become an adult. Xiao Wei looked for her target everywhere until she met Princess Jing (Zhao Wei) who ran away from marriage and was disfigured in an accident. Xiao Wei soon discovered that the princess had a different heart, and she placed all her ideals of becoming a human on the princess. The princess's appearance in Baicheng surprised Huo Xin (Chen Kun), who was once a childhood sweetheart and felt extremely guilty. Facing the princess, he could not accept the sudden reality that the princess ran away from marriage and was preparing to elope with him. Xiao Wei discovered the subtle psychological state of Princess Jing and Huo Xin, and her plan was born accordingly. She instilled in Princess Jing that a man's love for a woman is nothing more than lustful love, implying that the princess's ugly appearance was the only reason why Huo Xin dared not accept the princess's love, and she did not hesitate to use magic to confuse Huo Xin. When the princess seduced Huo Xin in Xiao Wei's skin and experienced the pleasure of the flesh for the first time, she began to believe in the power of beauty that Xiao Wei said. At this time, the Tianlang Kingdom was approaching step by step and wanted to rob the marriage. Huo Xin tried to resist alone and redeem love with death. At the critical moment, he was rescued by Princess Jing, which greatly stimulated Huo Xin. He understood what love is. Being together in the name of love, even if it means death, is the true meaning of love. The farewell of death dramatically changed the attitude of the two women towards life. Xiao Wei's relationship with the princess changed from seduction and coercion to conspiracy. Huo Xin blinded his eyes after learning the truth that the two had exchanged hearts and skins, and tried to exchange his heart for the princess's heart. The princess's determination to die for love, Huo Xin's courage to fight for sincerity, and Xiao Wei's all-out efforts to change her fate finally produced a miracle at the moment of the solar eclipse...