Cᴀsᴛʟᴇ ~ Tʜᴇ Gᴀʀᴅᴇʀᴏʙᴇ

[Ｅｍｍａ, ~Nutella~]

Okay, yes, it's basically just a fancy, pretty much communal bathroom located just outside of the great hall. There are, of course, bathrooms attached to all of the bedrooms, and a few more scattered in various areas throughout the castle.