Board Thread:Questions and Answers/@comment-7708862-20130402005255/@comment-7313057-20130402183345

Honestly, there are many inconstancy and unanswered questions in the series. Sometimes its hard to tell if the writer is holding back info for later or it was simply forgotten.

All hollows have a hole and mask, and arrancars have a partial mask and hole, but some arrancars don't seem to have a hole and following espada number tattoo location are unknown: Baraggan Louisenbairn, Szayelaporro Granz and Zommari Rureaux.

There is also the mystery of Kaname's unnamed female friend that he was seeking justice for and her unnamed husband who killed her.