Hu Bujue, a modern cultural scholar, traveled through time and became a beggar, and met Guo Bucheng, a similarly down-and-out scholar. The two became brothers by sharing fried cakes with two copper plates. Hu Bude mistakenly tore up the imperial list of talents, and Guo Bucheng was quick to help him make up the identity of "Hermit of Zhongnan Mountain" and help him go to Beijing in the name of "Xiancai".
Facing the challenge of riddles from neighboring countries, Hu Bude relied on the logic of "oil cake copper coins" to make up his mind, while Guo Bucheng supplemented the "tactical interpretation". The two won the duel with a chorus, Hu Bude was awarded a high position, and Guo Bucheng also served as the editor of Chongwen Museum. Hu Buchuan tells the story that "washing hands before meals" is praised as "benevolent government", and Guo Bucheng helps compile the hygiene manual; he is in love with his maid Ling'er, and Guo Bucheng helps hide the secret of time travel. When he proposed to marry from a neighboring country, he drafted a marriage rejection letter for him and firmly protected his relationship with Ling'er.
Hu Bujue found the jade pendant on his way home, and Guo Bucheng accompanied him to find out the jade pendant's origin, and was even more willing to help him safeguard the Central Plains legacy. In the end, Hu Buwei held the jade pendant and smiled in the morning light, and Guo Bucheng smiled and handed the fried cake: "Whether we stay or go, we brothers will be together." And their "fried cake brotherhood" has also been passed down to future generations together with Hu Buye's legend.
