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Name: Unknown (Referred to as Shodaime)
Strengths: Herculean Strength, Secret tree Jutsu
Family Members: The 2nd Hokage (Brother), Tsunade (Granddaughter), and Nawaki (Grandson)
Students: Sarutobi the 3rd Hokage (Deceased), Homura, and Koharu the Hokage's advisors
Info: Sixty years ago, Shodaime led a group of Shinobi to a lush forestland and founded the village of Konoha. Unfortunately during that chaotic era, he passed away shortly after the creation of the village.
Combat:His fighting style is a direct one, preferring to attack the opponent head on in hand to hand combat rather than attack from a distance or rely on Jutsus to do his dirty work. Sadly because of this we only see him use one Jutsu, but what a Jutsu it is. The Secret Tree Element Technique: Birth of the Trees (Mokuton Hijutsu, Jukai Koutan), is a secret technique that (allegedly) only he could use and it is sad that a number of the large trees growing in Konoha were created with this technique. By using his chakra as a source of life Shodai can cause massive trees to grow exponentially fast as well as control their movement whilst they grow.

Name: Sarutobi
Strengths: Knowledge of over 1,000 Jutsus, Genius intelligence, Summoning
Family Members: Konohamaru (Grandson)
Students: Jiraiya, Tsunade, and Orochimaru
Info: Sarutobi is a kind old man in every sense of the word, he regards everyone living in Konoha has a family member often acting like a grandfather to his people instead of just their leader. His biggest drive in life is to keep Konoha safe and to keep the people who live there happy.
Combat Ability:Sarutobi also knows the Summoning Jutsu (Kyuichose No Jutsu); in his case he is able to summon monkeys. The only one of whom we have seen him summon (and most likely the strongest of the monkeys) is Enma, the eldest Monkey a.k.a. The Monkey God, King Enma. While he is not as large as some of the other Kyuichose No Jutsu animals, Enma extremely tough, as he is able to physically fend off a Kage level opponent without too much difficulty. His true power though, is his unique ability to transform into a black and gold Bo staff called the “Free Forming Diamond pole, (Kongou Nyoi). As its name suggests this weapon is as hard as a diamond and can adjust its size and length at will. not only that, but since Enma is the actual weapon itself he/it can move around completely unaided, he can also multiply himself and cause his eyes and arms to sprout from anywhere on the pole. As a last resort Sarutobi has the ability to call on the most power and most dangerous Jutsu created by the 4th Hokage, the Demonic Soul Seal (Fuuinjutsu Shiki Fuujin). This is the same technique the 4th used to seal Kyuubi inside Naruto’s body so the sheer power of this Jutsu is beyond compare. This Jutsu allows the user to call upon a Shikigami orDeathGod which joins with the actions of the user. Shikigami reaches into an outline of a soul in front of him which is actually the user. When the user grabs the victim, the Shikigami extends his hand through the soul outline and comes out from the stomach of the user. The Shikigami hand goes into the enemy's stomach where from it literally rips the soul out. After the soul is pulled back into the user, the user says "Fuuin" (Seal) this completes the seal of the soul in the user's body. This can be used until the user runs out of energy, and since it is a sealing Jutsu, there is a price. The user pays the price with his life, which death devours. The souls of both the user and the target are kept in the belly of the Shikigami, and will suffer for all eternity in the belly of the Shikigami never gaining release, hating each other and battling for all of eternity. Apparently if the soul is not completely extracted from the body, Death can cut part of it and seal just the part which he has grasped.

Name: Tsunade
Strengths: Medical Jutsu, Summoning, Insane Physical Strength, Giant Knockers
Family Members: The 1st Hokage (Grandfather), Nawaki (Brother)
Students: Shizune, Sakura Haruno
Info: Despite growing up during the great ninja wars, Tsunade’s younger days were pleasant ones, ninja training with Jiraiya and Orochimaru (who was still a creep back then, but not yet an evil one), living with her little brother, Nawaki (who bears a slight resemblance to Naruto), etc., life was good. Things started to change on Nawaki 12th birthday, when Tsunade gave him a very special present, a rare stone necklace belonging to their grandfather the 1st Hokage. Nawaki was of course extremely happy to get this as he too dreamed of one day becoming Hokage and protecting Konoha just like their Grandfather did. Shortly after that day Nawaki was killed, the only details we are given regarding his death are that it happened on some mission and it was really messy, but it is suspicious that Orochimaru ended up in possession of the necklace until Tsunade arrived to see the damage. After Nawaki death, Tsunade went to government meetings began to push for the training of medical ninjas to be included in squads to reduce the deaths of Konoha ninjas. Her idea was promptly rejected, not because of lack of interest in her ideas, but lack of time and resources needed to train medical ninjas. One Jounin however, stood up of the idea as he had just lost his little sister in a raid on the village, but to no avail. After that meeting, Tsunade and Dan the Jounin became very close, so close in fact, that the night before the two were to leave on a huge mission Tsunade presented him with the necklace that had belonged to her brother (and grandfather) because Dan too wanted to become Hokage to keep others from feeling the pain he felt after losing his sister. Sadly, during the mission Dan was severely wounded and in the end the bled to death as Tsunade tried desperately to close the wound. From that night on, Tsunade developed a paralyzing fear of blood due to the fact that she was covered with the stuff after Dan bled to death. She also became disenchanted with the life of a ninja and left Konoha with her apprentice Shizune. She is currently the 5th hokage.

(tsunade had a younger brother. i think dan was her lover.)