One hundred thousand years ago, the infatuated love between Fairy Hanyu and Demon Lord Qingtian triggered a catastrophe between heaven and earth. The two realms of immortals and demons flowed into rivers of blood, almost destroying heaven and earth. One hundred thousand years later, the little orphan Yun'er wanted to return the jade pendant handed to her by her master before her death, but she never expected that the real owner of the jade pendant was herself. And the catastrophe of heaven and earth is destined to come again, and four infatuated men whose love is as deep as the sea, one is as gentle as water, one is as fiery as the devil, one is cold and arrogant, and the other is loyal to death. Where should she go?