Byakugan

History
The Kekkai Genkai known as the Byakugan is held by the Hyuga Clan of the Hidden Leaf Village.

Powers
The Byakugan gives the user a near 360 degree field of vision, with the exception of one small blind spot. The second power gives them telescopic vision of up to 100 km, and x-ray vision. The last and most powerful of the Byakugan's abilities is the power to see the flow of chakra in an opponent, and can even reveal chakra points. The third power gives the Hyuga Clan their deadliest fighting style: a form of taijutsu known as the Gentle Fist. By striking at an enemies chakra flow, they can block or speed up the flow of chakra. Using this technique can even kill someone with one blow: by striking the chakra point near the heart, stopping it.

Appearance
The Byakugan is pearly white in color, with the pupils of the eyes nearly invisible.

The Hyuga Clan
The Hyuga Clan possesses the Byakugan. In order to keep its secrets from the other villages, they separate the main family from the branch family. The branch family has a seal placed on them, so that when they die, the Byakugan that they possess is placed under seal. They die to protect the main household. The Hyuga Clan has always protected the Hidden Leaf Village, and is one of the Four Noble Clans that founded the Hidden Leaf Village. They were great allies with the Uchiha Clan, and launched a full investigation when Itachi Uchiha committed the Uchiha massacre. However, they discovered nothing. Though their family spawned the Uchiha Clan through the Sheikah, they know almost nothing about the mysterious race. They only know the the Akaigan is equal, if not stronger, in power to the Byakugan.