The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Chapter 1 Images (2 members)
- Chapter 2 Images (1 member)
- Chapter 3 Images (0 members)
- Chapters (5 members)
- Chapters not yet in tankōbon format (3 members)
- Characters (6 members)
- Child of the Grim Reaper (Chapter 5) Images (1 member)
- Design Templates (2 members)
- Documentation templates (1 member)
- Infobox templates (1 member)
- Mainpage Templates (3 members)
- Newborn Cry (Chapter 6) Images (0 members)
- Noindexed pages (1 member)
- PAIS (Chapter 8) Images (0 members)
- Pro (Chapter 4) Images (1 member)
- Real Life (2 members)
- Staff (2 members)
- Template documentation (1 member)
- Templates (1 member)
- Under Doctor (11 members)
- Volumes (1 member)
- What I Can Do on My Own (Chapter 7) Images (0 members)