Board Thread:Theories and Speculation/@comment-27082825-20150116155842/@comment-26023629-20150122234140

JitonRailgun wrote: You know, if "kekkei tota" means "bloodline selection", do you think maybe it might be a special kekkei genkai brought about by selective breeding? The land of Earth and the Land of Wind are really close together, and we know that there are individuals in the Land of Wind that naturally possess magnet release (Wind+Earth) and scorch release (Fire+Wind). We also know there to be people with lava release (Fire+Earth) in the Land of Earth. So, through arranged marriage or what have you, pairs of individuals possessing these different advanced chakra natures were bred until they sort of bled together into one, three-part nature. It seems like exactly the sort of thing that people would do to get a leg up on everyone else during the era of warring states, and it could also explain why kekkei tota were called "more advanced" kekkei genkai, as they were intentionally refined to a more powerful state.

Now that I think about it, how old is Mu compared to Onoki? By "passed on the secrets of dust release" to Onoki, It could mean that Onoki was the product of Mu's efforts to recreate his own abilities in someone else, by starting his own breeding program, explaining why they could share such a rare genetic ability but still be unrelated. Of course, that hinges on the premise that Mu was a good deal older than Onoki, which I cannot confirm, and it's just as possible that they really are related by blood.