I'm Going to Earth to Be an Undercover Agent

When he woke up, Lu Jia accidentally traveled to a world tens of thousands of years later, and also left the earth and came to a small Canglan star. At this time, the earth's spiritual energy has been revived for tens of thousands of years. There are many powerful people who have dominated the universe for many years. Its advanced cultivation civilization has been coveted by various planets including Canlan Star. In order to return to Earth, Lu Jia did not hesitate to embark on the journey home as an undercover agent of Canglan Star... PS: The protagonist has a system. You can guess the system by looking at the cover.