White, the female protagonist, was an apparent NPC when you play as the boy according to this
screenshot. She's in that hi-whatever world and her name is displayed as "White" from what I've heard (basically confirming their going back to the game names).
screenshot the boy is apparently named "Black", which is the male protagonists name according to multiple screenshots and videos.
When you enter this other world you change into the appearance of someone else, right? What if that is NPC Black's true appearance.