Mazuka Clan

The Mazuka clan (マズカクラン, Mazuka batsuzoku) is a clan native to Yamagakure. The Mazuka have lived in the Land of Mountains for hundreds of years. After many years, finally a man arose that could wield the clan's two Kekkai Genkai, the Taifugan and the Yin Release (it is rare to have both in the Mazuka clan). This man, known as the First Mazuka used his power to conquer the land, and at it's heart, he created Yamagakure. Decades past, and finally the shinobi village system came into play with the help of the Senju Clan and the Uchiha Clan with the birth of Konohagakure. When the First Hokage began selling out Tailed Beasts, a second Mazuka man decided that a beast was required for the Hidden Mountain Village, so he began sealing the chakra of every strong ninja he defeated. On his death bed, he managed to activate his own Taifugan (being the second in the clan to do so) and give life to the chakra, forming the Ten-Tailed Demon Fox.

Blood-line Limit
The Mazuka clan has two Kekkai Genkai, the Taifugan, and the Yin Release ninjutsu. The Taifugan is a rare eye condition in the clan that only appears in those that are direct descendants of the First Mazuka and on top of this, there must be an emotional bond to another person that is exceptionally strong before the eye will manifest. The Yin Release, a combination of Earth and Lightning chakra, appears in every member of the clan, regardless of descent.