Wei Yuchen is a college student with a handsome face and Wang Wenqiang, a good club brother who has been in every examination room through life and death. His parents are happy at home. Generally speaking, it is good to live such a life, but Yu Chen always wants to have something more interesting. So after reading countless time-travel articles, I turned my attention to time-travel comics. He struggled to find a way to travel for several months, but after the search failed, he had to give up the idea. During the year-end exam, he suddenly discovered that his cute little mobile phone miraculously evaded all major measuring equipment and came to the examination room from home, and a prompt box "Start YES
O" appeared. Yu Chen was extremely excited and clicked "YES" with trembling fingers. Then a white light flashed in the examination room, and Yu Chen took the first step in time travel!