I Joined a Livestream Chat, and My Immortal Identity Was Exposed

Chu Xuan transmigrated to the pre-Qin era and lived for two thousand years, spending his time teaching emperors throughout the ages. He taught Ying Zheng to cultivate immortality, Li Shimin to build a teleportation gate, and Zhu Yuanzhang to ascend through mechanical enhancement. Two thousand years later, the sages of every era had conquered the multiverse and established four divine Chinese civilizations. Bored, Chu Xuan sealed Earth's coordinates and turned it into a low-magic, low-martial “nature preserve.” He then retired to Earth as an ordinary old man. Until one day, his mischievous great-granddaughter took the jade seal he used to prop up a table and joined a live-stream call-in for the smash-hit show “Listen to the Spring, Appraise the Treasure.” Listen to the Spring: “My friend, the workmanship on this jade seal is so fake. It's just some flea-market junk.” As soon as he finished speaking, the seal triggered a formation projection, and a vast Tang interstellar fleet appeared on the livestream, blotting out the sky! Then the great-granddaughter started showing off one treasure after another: a space-beast cub from Emperor Wu of Han's era, and cultivation techniques from the Great Qin. The whole world went mad! Eagleland joined forces with the global fleet to try to force Chu Xuan to hand over the technology. The next moment, the heavens split open, and Qin sword cultivators, Han divine generals, and Tang mechs descended upon Earth. Qin Shi Huang: “Who dares disturb my master's peace? I will wipe out his entire clan and raze this star system!” The world was utterly shaken: Earth was just this old ancestor's backyard?!