After Traveling Through Time for Many Years, He Became a Dozen Workers Again

A time traveler who has traveled through time and become famous for many years was ordered by the Time Travelers Federation to become a pioneer in the new world. What will he encounter in the new world? I don't know that I haven't started thinking about it yet. This is probably a business novel, where the protagonist needs to manage a newly developed world. Also be a diplomat and pioneer in more unexplored worlds. Okay, I've gathered enough words for the introduction, and that's it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.