The Astral Express has always been a crew of colorful characters, none more so than (Y). He's always been seen as a weird one. Not only for the fact that he looks like a girl, Unpredictable nature, and ability to scare the living daylights out of everyone. But also the fact that he doesn't follow an Aeon. While yes he's on the Express he does not follow their teachings. When asked why he doesn't follow an Aeon his answer is always hidden in a well-crafted joke or redirecting the question at you.