So I'm still trying to understand the concept of a Kekkei Tota. One theory I have is that it is simply "one has an affinity for the 3 natures to create KT." However, if Ohnoki and Mu aren't related, and he was "passed down" the secrets, then that there would be contradicting to a sense if it was taught, and not inherited. Another theory requires taking the "Selection" part of the title literally. Would it be possible for one to be able combine a basic nature with an already existing Advanced nature? Ohnoki's grandaughter has the Lava release, which was either inherited from her mother, or someone on Ohnoki's side. Being on her Grandfathers side would imply (outrageously I might add) that Ohnoki has Lava Release, and through this Bloodline Selection, could combine wind into it. But That doesn't seem logical. So I've driven myself into this seeminingly nonsensical cycle and I was wondering if anyone had anything to contribute to or correct out of these theories.