Board Thread:Wiki Discussions/@comment-3238846-20140422105553/@comment-1512913-20140422175840

Supposedly, every Ninjutsu which isn't an element is either Yin Release or Yang Release. We just don't know which techniques are which, that's why we don't list people as Yin and Yang Release users. The funny thing is that we know Genjutsu is Yin Release, yet we don't list genjutsu users as Yin Release users for whatever weird illogical reasoning some may have.