The Mysterious Agents

The Mysterious Agents are three “agents” from a place unknown. They appear to be aware of time dilation, and have a certain mission that needs to be finished prior to the end of 2023. Specifically, they aim to stabilize... something.

They seem to be aware of quite a bit of the true nature of the world. They don’t want to get noticed, and they may very well come from outside the multiverse. They tend to want to keep canon intact. What exactly their mission is is currently unknown.

—-Theories—-

It’s quite likely they’re aware of the concepts corresponding to the 4th Key of Reality.