The protagonist is working on an assembly line, tightening screws. Unless something unexpected happens, he'll transmigrate without a hitch. He also gains the Flying Thunder God Technique and a Big Treasure Chest System. Watch how he uses the Flying Thunder God Technique to thrive in the Pirate King world, build his power, and make a glorious comeback.
"Kaido! They say every meeting is fate, so let me send you on your way!" Then he uses the Flying Thunder God Technique to send Kaido straight to Marine Headquarters, before using it again to return himself.
Kaido: "~~??? It's over! I've become the Ship-Hitching King!"
Good, good, wonderful. It's really wonderful. It's a rare book that goes astray.