A mask has always been kept in a museum somewhere. Professor Sun Lei discovered that as long as people with a certain physical affinity can travel to the Three Kingdoms the moment they put on the mask, the protagonist Cao Qin was the selected test subject. However, after the sad Cao Qin put on the mask, he discovered that this Three Kingdoms is not the other Three Kingdoms, but a somewhat magical parallel Three Kingdoms world. People in the Three Kingdoms have names, but they are essentially different from the Three Kingdoms in history. What is even more tragic is that after Cao Qin traveled in for the third time, he found that he could not come out because the moon that could be traveled was eaten by the Tengu.
