The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Anime (5 members)
- Article management templates (4 members)
- Article stubs (0 members)
- BlogListingPage (0 members)
- Blog posts (1 member)
- Browse (5 members)
- CD (3 members)
- Candidates for deletion (0 members)
- Candidates for speedy deletion (0 members)
- Category templates (3 members)
- Characters (22 members)
- Choir and Sometimes Badminton Club (6 members)
- Community (6 members)
- Condor Queens (1 member)
- Content (1 member)
- Copyright (0 members)
- Disambiguations (0 members)
- Ending Song (2 members)
- Episodes (13 members)
- Female Characters (11 members)
- Files (2 members)
- Forums (6 members)
- Gallery (4 members)
- General wiki templates (34 members)
- Help (5 members)
- Help desk (2 members)
- Hidden categories (2 members)
- Image wiki templates (9 members)
- Images (4 members)
- Infobox templates (11 members)
- M (0 members)
- Mahiru Sakai (1 member)
- Male Characters (8 members)
- Music (7 members)
- New pages (0 members)
- Opening Song (1 member)
- Organisation (0 members)
- Organization (9 members)
- Pages proposed for deletion (0 members)
- Pages with broken file links (8 members)
- Parents (5 members)
- Policy (2 members)
- Seiyūs (1 member)
- Shirahamazaka (1 member)
- Siblings (3 members)
- Site administration (4 members)
- Site maintenance (5 members)
- Staff (4 members)
- Student Council (2 members)
- Students (3 members)