Thread:Dim1/@comment-24034641-20131229022700/@comment-6697950-20131229105343

Like one day ago? The "Novel character" and "Anime character" categories were created by C9 to make it easier for him to make a list of all characters and which publications they were present in. To do this, he edited the character infoboxes to include such categories if the "debut' parameters were filled in, hence the name "debut categories".