Failed to Cultivate Immortality, Ended Up Cultivating Demonic Magic

The Great Dao is merciless. This is roughly the story of a young woman who cultivates immortality for a thousand years and is just about to pass her tribulation and ascend, only to die at the final moment! She is not about to accept that, so after taking over someone else's body, she switches to demonic cultivation. She once spent a thousand years cultivating immortality, but needs only 500 years to cultivate as a demon. Passing the tribulation, ascending, becoming an immortal: that is what keeps her alive. A Xuan (zombie): "Cultivation is so tedious. How did you endure a thousand years of it?" Moli sighs, filled with longing: "Because I had someone with me!" If I spent another thousand years cultivating immortality, I'd be an idiot! This story could also be called "A Zombie, a Vengeful Ghost, and a Demonic Cultivator's Hilarious Adventures." Theme: