They are a skeleton individual. they prefer they/them pronouns. They do not have an AU themselves, as they were “born” in the void. They remember the painful process of how they were made. And now they have a phobia of the dark, as it reminds them of the void. They are the multiverse messenger for the creators, to the creations. they are aware of all the AU’s. And if you give Cuatro a name of an AU, or person. Imagines will flash in their mind, giving them the knowledge on said AU, or person.