User blog comment:Nirocart/Which one is right?/@comment-6697950-20150604064624

Volume 1 doesn't say anything about the chapter number. It just has empty sections which were made to point out that the page is missing content. Just because one section is missing doesn't mean that the page is implying that there's fewer chapters. It just means that nobody got around to adding it, since nobody edits the page anyway.

P.S. If you have questions, use the Q&A forum board.