So this is Agent GreyBlade28. He is in the NWSE Organization or the Nonexistence Warding and Saving Existence Organization. He and other Agents deal with many problems in the multiverse. The main one is stopping the void from expanding and erasing any world's existence.

Agent GreyBlade28 is human biologically, but is not the same species as you and I. He has no recollection of his childhood because the memories and real life events never existed. Either he is the last of his kind or he came from nothing like any creation myth.