Museum librarian Gu Xing always thought that history was just fragments in display cabinets and famous scenes in explanations, until late one night, the words on the Hongmen Banquet exhibition suddenly changed. Broken Yujue dragged him into the light and fire of thousands of years ago, and the indifferent system issued a task in his mind: to guard an unsigned side note. But history books only write about emperors and generals, and troubled times are full of nameless little people. Gu Xing cannot spoil the story or rewrite the general trend. He can only find a narrow path between murderous intentions, lies and scraps. Every time you touch a cultural relic, you collide head-on with history.