Loona~7's Favorite

There's this one book that has a one-shot where there are maids, a butler, and the master. The maids are new and they talk about the master-butler relationship. It seems like the master is completely bossy and rude, and orders his butler around a lot but at the end, a sheet falls off and we find out that he's actually chained up and not really the one in control. I read it once before but now I can't find it. (￣∇￣") ╮(￣▽￣)╭