Born into a tragic life, Lu Rongqing bids farewell to Liang Yuan, the perfect girl he has secretly loved for years. Carrying the warmth she gave him and the redemptive, positive influence she had on him throughout their four years of college, he heads to Venice to study painting. To everyone's surprise, she gives up a bright future and decides to return to her hometown to grow mulberry trees and raise silkworms.
During a school carnival performance, Lu Rongqing falls and gets injured, then transmigrates to the Republic of Venice in 1260. Here, his true identity is that of a general in the Southern Song court, but through a series of mishaps, he is passed from one seller to another until he ends up in the Venetian Doge's Palace. He is ordered to help the Republic of Venice build a powerful cavalry force to stand against the Byzantine Empire and the Papal States. When Lu Rongqing refuses, he is sent to the slave market to be sold. The mischievous, sly, and eccentric young Marco Polo buys him as a slave. Lu Rongqing volunteers to grow mulberry trees and raise silkworms, and from then on, his fate becomes intertwined with Marco's. The two redeem each other, influencing Marco Polo and inspiring him to set off for China and open up a distant journey to that land.
