Time Travel: a Cannon Fodder's Self-Rescue

What! The chief disciple of the Demon Lord leads millions of demons to kill? Don't panic, don't panic, this is an old acquaintance of mine. What! I'm going to be locked up for ten years for violating the house rules? Don't be anxious, the elder of the Law Enforcement Hall is an old acquaintance of mine. What! Someone asked the number one killer to get my head? Doesn't he know that the number one killer on the list is also an old acquaintance of mine? Who am I, you ask? Why do you know so many people? I am a famous angel investor, and I invest in supernovas with unlimited potential! Hehe, who said you can't walk sideways on the mainland if you don't have good talent or strength! Although I traveled through time and got the wrong script and didn't become a pig's trotter, I can still dominate the mainland by virtue of my status as an angel investor. The arena is not about fighting and killing, it is about human relationships!