Sage of the Six Paths, Hagoromo Ōtsutsuki

Greetings Shinobi

Today we will learning about the creator of Ninjutsu (or Ninshū as he always insist upon),Hagoromo Ōtsutsuki (大筒木ハゴロモ, Ōtsutsuki Hagoromo) who is also known to the world at large as the Sage of the Six Paths (六道仙人, Rikudō Sennin), was a legendary god-like figure who founded Ninshū which led to the creation of the ninja world. He was the son of Princess Kaguya Ōtsutsuki‎‎ and alongside his brother, Hamura, were the first to be born with the same powerful chakra inherited from their mother. Both he and his brother defeated their mother, having become the terrifying Ten-Tails, in battle and sealed the powerful beast within him, thus making Hagoromo the first jinchūriki.

Hagoromo and Hamura also sealed away Kaguya due to her power hungry nature. Researching his mother's technique, Hagoromo was able to free the world from her Infinite Tsukuyomi. Later, with his knowledge of the concept of chakra, Hagoromo travelled across the land, giving chakra to every one in the world as well as spreading his ideals and religion, ninshū, which eventually became the ability known as ninjutsu. He was also very stern about his teachings being recognised as "ninshū", noting that "ninjutsu" was created for combat unlike ninshū's pursuit of peace, and gripped his staff rather tightly when Naruto failed to distinguish the difference between the two.

Hagoromo's ultimate wish was to establish peace across the world, but it was a goal that would never be achieved in a single lifetime. Knowing this, he chose to entrust his dream and legacy to his two sons, and began to teach them ninshū. The older son,Indra Ōtsutsuki, was acknowledged by Hagoromo as a true prodigy, who quickly began to revel in his natural prowess and became very solitary. The younger son, Asura Ōtsutsuki, proved to be the exact opposite, having shown no special abilities or natural talent, but he pushed on through his limitations, growing stronger and more mature because of his struggles and making friends along the way. Hagoromo acknowledged Asura's chosen path, agreeing that love and cooperation were the true keys to peace.

Inspired by his younger son, Hagoromo separated the Ten-Tails' chakra within his body and used his Creation of All Things ability to divide it into nine separated bodies, creating the tailed beasts and giving each a name. As a result of extracting them all at once, Hagoromo was left weakened and incapacitated for several months, though the powerful life force of the Ten-Tails' husk kept him alive. Some time after their creation, the young tailed beasts were told that they were all still linked to one another despite being separate entities. Hagoromo also told them that they would eventually become one again, yet not as they originally were, and that one shall appear at that time to show them what true power is. Hagoromo eventually used Chibaku Tensei to seal the husk of the Ten-Tails in what would become the moon. On his deathbed, he chose Asura to be his successor, but Indra, overcome by bitterness and envy as well as being encouraged and manipulated by Black Zetsu, fought against his brother, beginning a war between them that would continue through their descendants.

Suspecting that Indra or one of his reincarnations would eventually attempt to take Asura's power for themselves, Hagoromo left behind a tablet detailing his history in an attempt to make them reconsider. Only those who possess the Rinnegan can fully decipher the contents of the tablet, while a reader with other dōjutsu such as the Sharingan can still partially interpret the information. However, unknown to him, Black Zetsu had altered the contents of his tablet so he could manipulate Indra's descendants, the Uchiha clan, through the ages into resurrecting Kaguya and initiating the Infinite Tsukuyomi anew.

Even though Hagoromo died and his body destroyed, his chakra and consciousness remained and traversed the world throughout the centuries.  Hagoromo also a very modest man, openly admitting to his personal mistakes and shame as a father and leader. Despite his deified status, he also believed that no one should have more power than any other because it leaves a strong chance of the person becoming arrogant and desire even greater power. After trying to undo the rift he unintentionally created between his two sons, and their respective present incarnations, he ultimately laments that he was unable to repair the damage he caused; as such he put his trust in Naruto only.

Currently, in Anime Ninja Hagoromo only available as ,what he called, "Joyful Old-Man" mode in Anime Ninja. And to be honest, this is one grandpa you don't want to mess with. Having 2500 power from start is certainly going to give him edge in any fight.