The Great Sage of Heaven and Earth

Zhou Yan, a young man from Earth, dies in a car accident and transmigrates to this world, where he obtains the treasured Qiankun Ruler. It allows him to travel throughout the heavens and enter, ahead of time, one lost era after another that has yet to descend upon the mortal world...

…

P.S. The author has already completed The Yellow Court Taoist Master and Starting with the Dao Fruit. Give them a read if you're interested.