Three hundred years ago, Gu Changsheng was the number one prodigy of the Eastern Wasteland. To save his sect, he was forced into the world's number one forbidden life zone—the Burial Immortal Sea. Everyone thought he had long since perished. Until three hundred years later, the Burial Immortal Sea receded by three thousand miles. A figure in white walked out from the seabed. Gu Changsheng looked at the unfamiliar mortal world and remained silent for a long time. "I clearly only stayed inside for three years." "Why has the human world passed three hundred years?" His former junior brother had already become a decrepit old ancestor. His former acquaintances had long since been buried in yellow soil. And that girl who waited for him to return and propose marriage had also become the high and aloof Qinghan Empress, with her lifespan nearing its end.