The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Chapter 1 Images (2 members)
- Chapters (2 members)
- Chapters not yet in tankōbon format (2 members)
- Design Templates (2 members)
- Documentation templates (1 member)
- Mainpage Templates (0 members)
- Noindexed pages (1 member)
- Real Life (2 members)
- Template documentation (1 member)
- Templates (1 member)
- Under Doctor (6 members)
- Volumes (1 member)