Su Wan, an ancient book restorer, was repairing a incomplete thread-bound ancient book from the Song Dynasty when she accidentally touched the cinnabar contract mark hidden on the inside of the cover. A dazzling red light flashed. She actually traveled to the reign of Renzong in the Northern Song Dynasty and bumped into Xiao Jingyuan, the "Marquis of Zhenguo" recorded in the book. And that ancient book was the original contract signed by Xiao Jingyuan a hundred years ago with the "people from another world" - he bet his own destiny and the honor of his family in exchange for people from other worlds to help him break the "curse of the Marquis" and break the dilemma of the struggle for imperial power; and Su Wan's price was that he must complete the contract within one year, otherwise he would be trapped in the Northern Song Dynasty forever and never be able to return to modern times.
