Three hundred years ago, Gu Changsheng was the number one prodigy of the Eastern Wasteland. To save his master's sect, he was forced into the number one forbidden zone in the world: the Burial Immortal Sea. Everyone in the world thought he had perished long ago. Three hundred years later, the Burial Immortal Sea receded by three thousand miles. Gu Changsheng looked at the unfamiliar human 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 has already become a decrepit old ancestor. That girl who waited for him to return to propose marriage has also become the high and aloof Qinghan Empress, with her lifespan nearing its end. But nobody knew that the moment Gu Changsheng stepped out of the Burial Immortal Sea, one hundred thousand miles beneath the sea, nine forbidden existences that had slept for eternity awakened at the same time, bowing their heads in worship.