The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
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- Chapters (2 members)
- Character (9 members)
- Character Infobox Templates (5 members)
- Community (6 members)
- Content (1 member)
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- Files (1 member)
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- Image wiki templates (9 members)
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- Images of Daichi Shinagawa (1 member)
- Infobox templates (10 members)
- Male (5 members)
- Manga (1 member)
- Miscellanous (3 members)
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- Omake Chapters (1 member)
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