Returning to the Earth, I Walked Through the Air, and the Whole School Was Shocked

He was originally an ordinary student on earth, but he accidentally traveled to a world called Shengxuan Continent, and in just 30,000 years, he broke through the unreachable imperial realm and became the only one. After reaching the imperial realm, he saw a new world, but he was unable to advance even half a step because of a trace of obsession in his heart. In order to get rid of this last obsession, he broke through the void, crossed the universe, and returned to the earth. Little did they know that the earth had only been in the past three years at this time.