The heroine Siming is the guardian of the "Three Life Stones" in the heaven, and has been in love with the heavenly general Xuan Cang for thousands of years. On the eve of the wedding, Xuan Cang personally cut out Si Ming's immortal bones and gave them to A Yao, a "mortal girl" who looked exactly like Si Ming. Only then did Si Ming discover that Xuan Cang had already cheated on her, and that A Yao was actually a "Tianji puppet" who had no emotions and could only imitate.
The desperate Si Ming was deposed and thrown into the "Ascension Trial Game" where he had a near-death experience. However, with her insight into emotions and human nature honed over thousands of years of guarding the Three Life Stones, she repeatedly saw through the puppets disguised as participants in the game, and discovered that this was not only a trial, but also a huge experimental field for human nature.
The mastermind behind the game is none other than Fairy Jinghong, a god who has been jealous of his destiny for a long time and is trying to replace the "emotional" gods with an "absolutely rational" puppet. She cooperates with the demons who want to subvert the order of heaven and regards all living beings as pawns. Si Ming worked step by step in the cruel game and got acquainted with Ling Guang, the son of the Emperor of Heaven who was demoted to earth and disguised as an ordinary participant. The two went from suspicion to joining forces, and together they fought against the escalating puppets and increasingly dangerous levels. They finally revealed Fairy Jinghong's conspiracy, and discovered that the scumbag Xuan Cang had actually been brainwashed by Fairy Jinghong and became a part of her experiment. In the end, Siming reshaped his immortal body, took charge of the heavenly rules, and cleared away the haze in heaven.