In ancient times, he was Fuxi and she was Nuwa. He betrayed her. At the moment of the decisive battle, because of her soft heart, she sealed him in a piece of jade and guarded the darkness alone for thousands of years.
During the troubled times of the Three Kingdoms, he met her again. She had been reincarnated for many years and could not remember him. He hated her, he wanted to get rid of the seal, and wanted to be reborn in the world. He is the master, not her. He turned her into a living dead, and she became his disciple, seeking countless souls in the world for him, just so she could be by his side.
During the Qing Dynasty, she met Jiang Yin, the prince of Emperor Fengdu of the Ming Dynasty. Every time she got her soul, Jiang Yin took away her soul. For these souls, Su Hua and Jiang Yin are at odds with each other.
In the 21st century, Su Hua was reaching a contract with a soul, and the lingering ghost Jiang Yin came. He said, Su Hua, long time no see.