I Can't Find This Book, Please Help!#

Uh... it's a story with two male leads. The protagonist is the one being pursued, and he's a quick-transmigration traveler. He'd completed missions in many worlds before, but all those worlds fell apart, so now he has to go back. In the first world, I think he's a famous, flirtatious actor, and the love interest is a CEO. I got as far as the protagonist being sent...