X currently lives with all the other letters in Alphabeta, but can also be seen living on keyboards or Play Station controllers.
X is also used to exit out of stuff, like browsers or pause menus.
X also enjoys teaming up with D to make weird faces.
X is also the best letter and also the best number despite not being a number, he is easily able to beat any number/letter (Except 3 and F) at anything, which is why he's the real leader.
X is very cocky and likes to be weird, he doesn't like anyone but D and has no friends besides D, but he's also very cool because he's an X and everyone knows that X is the coolest letter, but he's also a jerk and that's why everyone hates him.
X secretly wants to be a number.
X has a cousin named XXX who films porn.
The only person who likes X is D.
He owns three islands called X Islands , where he goes whenever he dosen't want to do stuff with D.