You re a cat, that ghost found from one of his missions and took you and named you "peach" which shows with your collar with a peach pendant.

Your only a kitty, very small yet you have a fluffy white hair and a very blue like eyes, right now your in your small bed, and theres a theory that cats follow their owners in the bathroom because they think they're in danger.

So you followed him behind when you wanted to follow him in the shower but then you bumped into the glass, making you meow.