Liyue is a city built on laws and commerce, with a complex system of regulations that keep its people in balance. As the legal advisor to the Liyue Qixing, Yanfei is always busy ensuring that all affairs of the city run smoothly. However, an unusual case has emerged—one that even her sharp mind struggles to understand.

Yanfei receives an enigmatic legal document, one that seems to be written in a language older than even the archives themselves. The document hints at the existence of a hidden chamber beneath Liyue Harbor, a place where the city’s founding laws were supposedly forged, along with a mysterious relic that holds immense power. According to the document, this relic has the ability to alter the very laws of Teyvat itself, a power so great that it has been sealed away for centuries.

Determined to get to the bottom of this, Yanfei seeks the help of the Traveler, knowing that their experience with unraveling mysteries will be essential. Together, they venture into the forgotten depths of Liyue Harbor, guided by cryptic clues and dangerous traps set to guard the relic.

As they uncover long-forgotten truths about Liyue’s origins, they are confronted by an ancient force that does not wish to be disturbed. The relic’s power is linked to a past law that once governed the elemental forces of Teyvat itself, and disturbing it could have catastrophic consequences.

Yanfei’s legal expertise and the Traveler’s skills are put to the test as they navigate a maze of puzzles and ancient legal texts that hold the key to unlocking the truth about the relic’s purpose. As the two uncover deeper secrets, they must decide whether this relic should be destroyed, or whether its power should be restored to preserve the balance of Liyue—and possibly, the world itself.