Time goes back to the Warring States Period. At that time, families were the unit and wars continued between each other. When strangers met, they did not dare to say their last names. The average life span of human beings is only thirty years, because even children aged seven or eight have to pick up weapons and go to the battlefield.
One day, a boy who killed Matt was floating by the river and happened to meet a boy with a watermelon head. The two were similar in age and both had a playful nature, so they quickly chatted together. This was the first encounter between Uchiha Madara and Senju Hashirama.
After that, the two met often, practiced ninja skills together, and imagined the future, and their relationship became increasingly deeper. But the good times didn't last long. The two's meeting and family identity were known to each other's fathers. The Uchiha clan and the Senju clan were against each other, so the fathers asked the two to steal the secrets of the other's family and wait for an opportunity to kill each other. However, at this time, both of them regarded each other as brothers, so the next time they met, they both reminded each other to "run away".
Although neither Madara nor Hashirama betrayed each other, after their identities were revealed, the two could only meet each other on the battlefield. In year after year of fighting, both of them grew into the patriarchs of their respective families. In a battle, Madara's younger brother Izuna was seriously injured by Hashirama's younger brother Tobirama with the Flying Thunder God Slash, and later died. Madara thus obtained the eternal Mangekyō Sharingan. After that, Madara fought Hashirama again, and the battle lasted for a day and night, and finally Madara fell to the ground for the first time. Madara asked Hashirama to give him a good time, but Hashirama still refused to give up their common dream: "Didn't we agree? Sooner or later, we will build the ideal village. We can still fight together as before. Is it stupid?" Ban said: Now I have no brothers, no one to protect. If you want us to confide in you, then kill your brother or take it upon yourself.
After hearing this, Hashirama took off his armor and told the clan members behind him not to embarrass Madara and the Uchiha clan after his death. After saying that, he stabbed the kunai at himself. Madara was finally moved by Hashirama, stopped Hashirama from committing suicide, and agreed to reconcile with the Senju clan. After that, the two worked together to build a village, and joined forces with the Fire Nation to establish a peaceful kingdom where the country and the village had equal status. The Country of Fire requires the Ninja Village to elect a leader. As the representative of the Shadow Ninja who protects the country, Hashirama named this position "Hokage" and plans to carve Naruto's head on the rock wall as a symbol of protecting the village. And proposed Madara to fill this position. Then he asked Madara to name the village. Madara looked at a leaf in his hand and said: "How about Konoha Village?"
After Tobirama learned that Hashirama wanted Madara to serve as Hokage, he strongly opposed it and expressed his opposition. It should be elected democratically. In the end, Hashirama was chosen as the first Hokage. Madara, who had lost his position as Hokage, talked to Hashirama, saying that if this continues, the Uchiha clan will perish sooner or later, but when he called on his clan members to leave the village, no one was willing to follow him. So Madara decided to leave alone. Hashirama couldn't hold him back. Later, Madara controlled the Nine-Tails to attack the village, Hashirama and Madara dueled, and finally killed Madara in the Valley of the End. This was also the last appearance of the two founders of Konoha Village before their death. Of course, Madara is not actually dead, but that’s a story for another day.