Reborn in a Parallel World, I Am Invincible

[Case solving + system + suspense + time traveler chaos + no heroine] Cheng Shi was reborn in a parallel world. At first he thought it was a world similar to the original world, and he was about to show off his talents, but slowly he discovered that he was experiencing more and more outrageous things! Only then did he realize that this was a parallel world where many big bosses were reborn. This parallel world slowly became weird and strange. Fortunately, he had a system to help him! Soon he rose to prominence and became a leader in the parallel world, slowly coming into contact with the truth of the world...