Hi. You've lately added various pages to many, many categories. Unfortunately, I had to revert your edits as you have sorted the wrong pages into the wrong categories.
For example, the "Characters" category is only for characters. Like Ciel or Elizabeth. Pages like "Weston College" are not about characters and thus, should not be sorted into this category.
The "Manga-only Characters" is only for characters who only appear in the manga. Like Sieglinde or Blavat. If a character appeared in both manga and anime, it is not a "Manga-only Character" anymore. The same goes for "Anime-only Characters" which is for characters who only appear in the anime. Like Alois or Claude.
The "Werewolf," "Demon," "Bizarre Doll" and "Human" pages are about races. Characters can belong to a race (Sebastian being a demon, Derrick being a Bizarre Doll), but races are not characters.
The "Anime" and "Manga" category is used for pages which are directly tied to the manga/anime like the "Monthly GFantasy" page (manga) or the "Kuroshitsuji: Book of Circus" page (anime). Characters and locations and stuff are not sorted into this category.
Also, please refrain from adding new categories like "Manga arcs" and "Anime arcs." There are categories named "Manga Arcs" and "Anime Arcs" but are spelled with a capital letter. Furthermore, these arcs are for arcs only. And not for everything somehow connected to the arcs.