Traveling Through the Happy World

Some people travel across the world and enter the magical world. Some people traveled across the world and traveled to the ancient world. Zhang Yun also traveled through time, but his time travel seemed a bit sad. He still traveled to the urban world he was familiar with in his original life. It's almost the same world as the one I used to live in. It's just this urban world and Zhang Yun's original urban world. A little bit different. The difference is that men in this urban world can legally marry three wives and four concubines. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.