Mu Yang transmigrates into the world of Teyvat, unexpectedly inheriting the mantle of the Heavenly Principles after the original deity perishes. Facing an impending Abyss invasion that threatens to consume the continent within five years, he must rapidly strengthen his fledgling power. His first strategic move involves approaching Morax, the Geo Archon, in Liyue.

By offering a cure for the erosive effects plaguing the adepti and gods, Mu Yang successfully trades promises for Morax's Gnosis. Absorbing this divine artifact instantly elevates his strength to Archon-level and unlocks a unique deduction ability. Leveraging this new power, he hand-crafts a supernatural chat group to unite key figures across Teyvat.

As the new administrator of reality, Mu Yang begins restructuring the world's power systems, aiming to replace the flawed Vision mechanic with cultivable martial arts while rallying allies like Xiao to fight back against the encroaching darkness.