What Kind of Fairy Sister-In-Law, Help Me Beat up the Son of Luck?

(Villain + invincible background + sister-in-law + empress + relaxed and funny) Li Mou traveled through time to the Jiutian World and became a member of the Li family, which is superior to all living beings. However, the Li family was too evil and was jealous of heaven. When it came to Li Mou's generation, the lifespan of a man was no more than twenty, and Li Mou was the last member of the Li family's generation. Li Mou was about to turn 20 but had no offspring yet. His second uncle, who commanded the largest force in the Nine Heavens world, held a meeting to select disciples (concubines) for Li Mou. At this time, Li Mou awakened the villain's immortality system, and plundered the luck of the son of luck to exchange for life span. But Li Mou's elders didn't know! The quasi-emperor's father: "When my son dies, I want Heaven to bury him with him!" God-level Formation Master Third Grandfather: "I want the Nine Heavens world to be enveloped in my formation!" The richest man's aunt said: "Use all the property in the Jiutian World to be Li Mou's burial object!" Sister-in-law: "If you leave, what's the point of living for me!" However, Li Mou, who was over twenty years old, was still alive and well. The world is shocked! Doesn't it mean that you can only live until the age of twenty? How come the Heavenly Dao has fallen, but Li Mou is still alive and well!