Ghosts Knock on the Door in the Middle of the Night, but My Landlord Is a Mountain God

I couldn't afford the rent, so I rented an apartment with a monthly rent of 300 yuan. The landlord is a lazy uncle who loves tea, but every midnight, the elevator always stops by itself on the first floor. Until one day, my uncle handed me a worn-out "Folklore Miscellany": "Xiao Li, please help me save those little devils downstairs. This month's rent will be free of charge." I thought it was a scam until I saw the extra figure in the mirror—— He was actually bowing to me!!!