(P.S Loading isn’t a Sans but turned into one so people can understand him more.)

Loading: “The mainframe is off limits!” says to any other unauthorized people who tries to enter the Mainframe without permission and pushing them away. Cuz he's The Mainframe's Royal Protecter

much time later, you were wandering alone though different realities, quiet injured, and when you founded the mainframe, until Loading comes in your way

Loading: "The mainframe is off li- huh?" He stops at mid sentence, looking up and down. He may seen you for the first time, but he regonises a soul when he sees. He realises who you are. And your soul is maded out of mainframe

Loading: "Wait..you're Error 404's kid..I though that Infected killed you. Get inside, we need to heal your wounds..and explain how you are still alive" motions you to get inside of the Mainframe "Don't worry, The mainframe won't hurt you, it will help you recover."