Clan History: The Yaru Clan dates back to the time of the founding of Kumogakure. It's Leader/founder of the Clan at that time was known as Oujoukun. He was an outlaw actually, but not from the whole world. No, just an outlaw from the Konoha.
For Oujoukun possessed a bloodline thought to have been derived from the sharingan eye. Derived from both Sharingan and Byakugan as his parents were of both bloodlines. Their combined blood seemed to fuse in the making of Oujou creating a new bloodline with all new abilities that Oujou alone possessed. But for this strange fusion of the bloodlines, he was considered an abomination to both the Hyuuga and the Uchiha.
The Hyuuga Clan shunned the very existance of him and tried to forget the accident ever happened. They through the boy out since he had no mother to protest since his life had taken hers. Even the Uchihas gagged at the thought of a fusion of the bloodlines. And as so, even they refused the father and child shelter. So, Oujou and his father were forced to leave Konoha behind and make their life in the wilderness.
It wasn't till years after he had grown to the age of 17, that Oujou lost the last of his caring family. His father and him had fought against an abushing group of rouges, his father taken over and killed. All those years, Oujous father had told Oujou to hide his bloodline and never reveal it to the world. But Oujou was taken back by the bloody murder of his father and unlocked his bloodline fully for the first time.
He slaughtered the renegades and in doing so, began the hunt for his head. For one of the rogues escaped and was captured by Konoha later that week. During questioning, he spoke of Oujou and his mighty eyes like the man had never seen. But this time, Madara was furious with the thought that the boy Oujou did possess a bloodline of both Clans. And in fear that the boy would cause a problem in the future, he sought out the young shinobi. Sought him out only to destroy him before he and his bloodline could become a threat.
It obviously didn't take Madara long to find Oujou, but when he thought the fight would be one sided, Madara was mistaken. For even though Oujou had hid his powers all hose years like his father had asked him to. He had trained them though, in secret, away from prying eyes. For when Madara found Oujou, he realized that the eyes Oujou possessed would be all but a match for the Sharingan. And so, the battle between the two raged.
The battle raged for two days in the midst of the wilderness. The sound of their attacks echoed for miles around. But even the great Madara found his match in this young prodigy. They had fought eachother to the verge of death. Each shinobi was at his last stretch when they called a truce between them.
It was after a long rest for each, that they decided to let the other live. And so, they devised a resolution to this problem. Madara could not kill him, and Oujou could not kill Madara. They were the strongest shinobi and there was no reason to attempt anymore fighting. So they agreed to leave eachother alone. They would make a long standing pact with eachother that the Uchiha would never again threaten the boy, if the boy promised to never reveal his origins to the world.
The boy was not stupid and so, agreed to the pact and on that day, they went their seperate ways. Madara vanished years later, no one knew what happened to the great shinobi. But Oujou, he went on to found the Kumogakure village. He married a woman named Keisei Yaru. Oujou took on her last name and lived a long life in Kumogakure. The new rising star of the Yaru Clan, is Surpentheon Yaru. He was born to the Clan Leader and is destined to take that place. He now forges the history of the Yaru Clan. Him and his fellow Clan members.