Dragon Ball: Time Travel and Become Son Wufan

I believe that every boy will imagine that when he was young, he traveled to a fairy tale or animation world, where he became an omnipotent protagonist, or used his own role to help the protagonist kill the BOSS. And when he can really travel through time, will all this really go as he wishes, or will Ye Gong be a good dragon and just stay in that beautiful childlike fantasy? The protagonist of this work traveled to the world of Dragon Ball and became Sun Wufan. His future is full of unknowns and confusion...