User blog comment:Zack Tan/The Homunculus Maids of Nazarick Side Story/@comment-219.125.64.184-20150829052415/@comment-26501532-20150829052708

Well,  Skythewood's translation team told me that they maybe called Six, File, Rumiel and then Increment/Inclement, it's more logical but it is not confirmed to be their original name yet. But I'll change it to a more suitable name soon.