I've Become Emperor, and the System Just Came?

Traveling through the sky, attaining enlightenment for thousands of years, and being the master of the universe, I thought it was the pinnacle of the path of cultivation, but I still cannot escape the limit of ten thousand years of life! "Ding! The Ten Thousand Realms Commission System has been activated!" ? I've become emperor, and you're the one who came to the system? ! Well, in order to achieve true immortality, the dignified Emperor Xuanhuang had to embark on the road of "part-time work"! Naruto: Analyze the Reincarnation Eye, and... Ahem, invite Tsunade to study the secrets of life together! One Piece: Target Surgery Fruit! Empress Hancock, you're in the way! Fate: Holy Grail War? The third method is mine! Saber, Tohsaka Rin, the Imperial Palace is still short of maids! Marvel: Infinity stones are a good supplement. Would Black Widow and Scarlet Witch be willing to watch the birth and death of the universe with me? Dragon Ball, Journey to the West, Prehistoric... See how the great emperor Lu Chen descends powerfully across the heavens and worlds, searches for the fruit of immortality, and brings various goddesses into his harem one by one, creating a romantic and immortal legend that spans the heavens! This is not only the emperor's journey to extend his life, but also the beginning of conquering all worlds! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.