Board Thread:Fourth Databook/@comment-4271790-20141104211032/@comment-945885-20141105005507

WindStar7125 wrote: FF-Suzaku wrote: To me, the book seems to make it pretty clear that "Yin-Yang Release" and "Yin Release and Yang Release" aren't the same thing.

I think what we can discern from this is that being able to use Yin-Yang Release doesn't necessarily mean an individual has mastery of both Yin Release and Yang Release. I agree. So technically, Hashirama has Yin being able to use the Bringer of Darkness Genjutsu (from the manga), but wasn't listed has having Yin in the databook, but only Yang. Tobirama can use the BoD genjutsu (from the anime), and was listed to have Yin and Yang. So maybe Tobirama can use Yin, Yang, and Yin-Yang; and Hashirama maybe can use Yin and Yang, but not Yin-Yang? That is my best guess, even though you said that usage of Yin and Yang does not confirm usage of Yin-Yang. Actually, the databook states pretty explicitly that almost nobody can use Yin-Yang Release. At best, they only use a basic, rudimentary fragment of that power.

Actual Yin-Yang Release seems to pretty much be restricted to people who have obtained power similar to that of the Sage of Six Paths (namely Six Paths Senjutsu and the Rinnegan).

Keep in mind that the databook listing someone as having Yin Release and Yang Release doesn't mean they have Yin-Yang Release. Same as having Water and Wind doesn't mean they can use Ice.