A Korean exchange student came to study in a small border town in China. However, on his first day at school, he tried his best to publicize the "patents" from South Korea. The protagonist Wang Yu couldn't bear it and took out a history book to prove to him that the Korean exchange student was wrong. However, the exchange student still refused to admit it and threw the history book into the air. At this moment, the history book emitted a golden light and took the whole class and the exchange students on a journey to review Chinese history...
