Deep within the Five Nations rose a land, a land that was different from the rest in names and practices. They allied no one, protected no one but themselves, and handled missions for their own gain. They were the land known for raising assassins, ninja skilled in the art of killing. Because of this fact, the land got its name: The Land of Blood.
Within this land was a powerful family who held dominion over the entire village. They were named Kunimitsu. They were known for their crystal blue eyes and silver white hair. Their Kekkei Genkai, the Kyosugan, was considered the most powerful of all eye bloodline traits, due to the fact that it held its own special powers along with the powers of the Hyuga and Uchiha clans. This family was respected and feared all the same. No one would dare defy the Kunimitsu family, mainly because they bred the most powerful assassins known to all nations.
After several decades, a daughter was born into the Kunimitsu clan. What was special about this girl was that she was the first girl to ever be born with the family Kekkei Genkai. At the age of six, she honed the power to its full potential. By the age of twelve, she discovered powers within the Kekkei Genkai that even the ancestors and elders of the family did not know about. Her strength and abilities only continued to grow as she grew older and wiser. She became the most powerful assassin the land had ever known, even surpassing her father and her prodigal elder brother.
However, a month after the girl's 17th birthday, horror struck the entire land. A rogue ninja, assumed to be one bred from the Kunimitsu clan itself, assassinated the entire land in three days. The great nations surely heard of the tragic event and made sure to reinforce their ninja just in case their home was next. It was unbelievable that a land of such power and strength was destroyed by one person. The Land of Blood was wiped from the map, and the Kunimitsu clan was destroyed in its wake.
Except for two unknown survivors.