It pisses me off so much when people say that Hua Cheng ''doesn't have a backstory''. It's making me very tempted to sit anyone saying this down and narrate his very extistent backstory to them.
And no, we don't know everything about his story, but we don't know that for xl or any other character either. Explaining everything isn't possible anyway, and that combined with mxtx's tendency to leave some things ambigous, it makes sense to omit whatever isn't relevant, that's what stories do.
But that doesn't mean that it wasn't there, and how some people seem to have missed the entire thing is beyond me.











