After accidentally triggering the ancestral jade pendant, Su Qingyuan was forced to get involved in a historical dungeon that spanned a thousand years. The beacon battlefields of the Pre-Qin Dynasty, the prosperous palaces of the Tang Dynasty, the misty marketplaces of the Southern Song Dynasty, the deep ancient houses of the Ming and Qing Dynasties... Each copy is a real but treacherous slice of time and space. To pass the level, you need to complete random tasks, and if you fail, you will face unknown punishments. In the dungeon, she encounters all kinds of "key figures" - the arrogant young general, the gentle literary master, the unruly knight-errant, and the sinister dynasty official. They may be a help or a trap. Su Qingyuan relied on her astute mind and tenacity to survive step by step amid swords and intrigues. She not only wanted to accumulate survival points, but also uncovered the secrets behind the jade pendant and copy. As she went deeper into the game, she discovered that these "historical figures" did not seem to be simple projections of time and space, and that this infinite loop of historical wandering had already been foreshadowed thousands of years ago.