My Wife Is the Gatekeeper, Demon Lord, Don't Knock on My Door

My wife is a Lei Xiu boss guarding the Realm Gate, my daughter is a top-notch fire spirit root genius, and I, Shi Heng, am an ordinary housekeeper. My daily task is to stop the demon king from across the street who comes to my yard every day to enjoy spiritual tea and WiFi, and also tries to discuss with my wife "how to repair the door to make it look good."