Trash Doorman? I Pushed Open the Door to Hell with My Backhand!

Traveling through time and becoming a useless "doorman" who was scared to death by F-class monsters? Lu Ren said that it is a useless ability that everyone despises. In my hands are endless treasures! The left hand swallows all things, and the right hand opens a hundred layers of demon prison! Swallowing F-level putrid mud spiders = slight increase in attributes, unlocking shadow servants Devouring the C-level three-headed demon dog = attributes skyrocketed, unlocking the demon dog shadow army Swallowing the SSS-level evil god of disaster =? ? ? , Unlock the world-destroying divine shadow! When the city-destroying demonic tide descends, S-class heroes fight bloody battles, leaving the whole city in despair. Lu Ren silently closed the door: "One hour outside, ten hours inside the door, first apply a hundred layers of pressure to calm down the shock." The Strongest Flame Emperor: "My heavenly fire that burned all things could not hurt that demon dragon at all. He... He ate it in one bite?" Federation Goddess: "Classmate Lu Ren, this army in your shadow seems to be stronger than our Federation army..." When the Lord of the Abyss comes to judge all mankind. Behind Lu Ren, the black shadows of billions of gods and demons opened their scarlet eyes. "Not bad ingredients. Just in time, my shadow army still needs a janitor." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.