To Change History, I'm Going to Make People Vomit from Exhaustion

A history college student has the ability to continuously create tributaries of history, and can continue to travel back in time before major historical events occur, and change the direction of history according to the regrets in his heart. This ability is not unnatural, but in fact it is all destined. There is still a huge boss behind him affecting all of this. The space is constantly changing Zhang Yi's appearance, identity, abilities and personality. Is the Zhang Yi of the past still the Zhang Yi of today? This is not a philosophical proposition, but one thing is certain: Zhang Yi is also changing the ultimate direction of the world and even the universe.