During the Wanli period of the Ming Dynasty, the Crown Prince Zhu Changluo and the eunuch Zhang Cheng were competing with each other in the court. The Crown Prince later heard the prophecy of the Imperial Observatory and decided to send someone to kill the eunuch named Wei in the palace. Zhang Cheng saw that all his disciples were killed, and plotted to assassinate the Crown Prince's wife Guo Qian, who had not yet married, to vent his anger. Yuan Chonghuan, the captain of the Eastern Palace, and Zuo Guangdou, the assistant minister, were ordered to escort Guo Qian to Beijing. During the trip, they encountered an ambush by the Eastern Depot, and they fled to a mysterious fog forest nearby to hide. Zhang Cheng ordered to set fire to the forest to force them to show up, and Guo Qian accidentally got lost in the chaos; Chonghuan, Guangdou, and the accompanying eunuch Li Jinzhong, the young eunuch of the Imperial Kitchen, walked out of the fog and saw the incredible scenery in front of them. It turns out that they have traveled through time and space and arrived in the modern 21st century! Chonghuan, Guangdou, and Jinzhong have no choice but to start their lives again as modern people, but they are still ancient people from the Ming Dynasty. Although one of them is skilled in martial arts, one is smart, and one is an excellent cook, their old-fashioned values and lack of knowledge of science and technology make them incompatible with the lives of modern people, and they also make a lot of jokes! The three of them experience shocks again and again in the modern era, and their personalities and values gradually change. Later, because of a rare vision that is about to happen, they face the most severe test and choice in their lives...