Board Thread:Wiki Discussions and Support/@comment-2140588-20141219170959/@comment-26112212-20141222182159

Yin Healing Wound Destruction can be Yang release, because Yin Release page just makes it like a trivia that Yin is in the name, so there is a possibility that all medical ninjutsu are Yang release could still hold true, just to make sure. I'm okay with Yin Seal: Release because it is classified as fuinjutsu, so based on name we can be sure only for this one.