Go Back 90 Minutes and Change Everything

By mistake, Tong Yu was involved in a "war" that spanned time and changed history between two mysterious organizations, and he knew nothing about his enemy. The good news is that he gained the ability to "backtrack." … I don't know how many times I have to backtrack. "Sir, what I am going to say next may be hard for you to believe, but what I say is true." "You can rest assured, I have been a criminal police officer for thirty years, what kind of scenes have I not seen?" "There is a mole in your criminal police team. He has a gun in his hand that can send me back to an hour and a half ago." "I've never seen this before. How can you prove your statement?" "Your nickname is Erdan. You like to drink Longjing. You are left-handed. Three of the ribs on your left chest were broken during the last case." "Have you ever investigated me?" "You told me personally last time." Tong Yu smiled. (The outline is complete, you don't know how to be a eunuch, and there will be no logical problems, so you can read with confidence)