Traveling to the Outer World

This book is a time-travel novel, traveling through different worlds, with a high probability of choosing fifteen worlds. The word count should be more than two million words. Of course, I will try not to be cliché. As for the world of travel, I won't reveal it to you, so please stay tuned. The main world of this book is on Earth, and the protagonist's name is Dong Yun. By the way, this is a new product, please bear with me. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.