I Become Stronger When I Hit a Demon

I have an invincible system that can subjugate demons, eliminate demons, catch ghosts, extinguish evil spirits, defend morality... This is all nonsense. Marrying Bai Fumei is the pinnacle of life. Regardless of the devils and monsters, I will take them all under my control. Huh? There's a spider demon ahead. "Ding! I am attacked by the spider demon, the attack is invalid, and the fairy points are increased...".... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.