The Almighty Janitor

At Azure Mysterium Sect's recruitment, mortal Finn Finch is pushed onto the Spirit Monolith, shattering it. Mistaken for a genius with Immaculate Immortal Spirit Root, the Oracle Mirror confirms he is pure mortal. Unable to pay compensation, Finn Finch is forced to sign a Pact of Servitude, joining the sect with dog Buddy. He is assigned to clean latrines on the Ninth Peak. There, he picks up an old broom, which will overturn the Cultivation World.