DustPlayer

Game on

The Multiverse, a type of existence in which Alternate Universes exist alongside one another within the reality they are in. The Reality acts as a continent, there Multiverse acts as a sort of state, and the AUs act as a sort of city, with the Alternate Timeline of the original Universe called Undertale, where all Alternate Timelines and Alternate Universes are connected to and rely on for continued existence, now existing and being protected, which is the Alternate Timeline called GlitchDust. Within the wall of the cliff side of some sort, there is a sort of door that leads to a sort of home to a certain hacker inside of the place. 

Sitting on a comically large bed within a room, is a certain humanoid entity with red hair and eyes, grey skin, and is wearing a black 'skirt' of some sort with red stripes and a black hood with a vertical red line in the center, and is shown to be interacting with screens that manipulate code of sorts.

This is the Player of GlitchDust, who is also the creator of the AU, now having been able to make a body of his own to utilize and preform in. Player has been living inside of the AU for some time, for what must have been over a year, as he is shown to have been observing what is going on inside of the Alternate Timeline that he has made. He looks and sees Mettaton and Papyrus, who has fused with his Dustbelief self, together and engaged, Sans and Vivian from Undertoad also living together with a child now having been born, with Braixen and the Alolan Ninetales from Trainertale present, and Asriel and Chara doing their business as members of the Determino Council in order to keep order uninterrupted.

Over the past year, Player, while in real life, couldn't do much with what he has, due to not being an actual hacker, inside of the AU which has a bunch of code and data, was able to put a piece of his soul in a small way, basing the determination off of Chara's Animosity, and entered inside of the Undertale Multiverse. And when he first entered GlitchDust, he made a barrier that prevents the AU from being sensed or seen by anyone outside, and even Anti-Flowey, with all of his, is unable to sense the AU ever again. So currently, the entire AU is under his protection. Besides, he already has made copies of himself to protect the AU whenever he is gone. The AU may have been hidden, but even he knows that this will not be enough to keep GlitchDust safe. Besides, he was getting tired of having to try and bring it back with his powers.