How did you end up dead?
The process of sacrificing with soil:
At the end of the Third Endurance World War, he decided to help Naruto and others deal with Ye Hui. During the war, Ye Hui tried to kill Naruto and Sasuke with a "* * * bone killing" similar to Kimimaro's "corpse vein".
Both Tui and Kakashi decided to lay down their lives to protect them. When they run, Lin helps them move forward. Just as Ye Hui's bone blade was about to penetrate them, he pushed the bone flying to Kakashi to another space with great power, but he was penetrated through his body. Tui once again gave his life to save Kakashi, and claimed: "Now you'd better stay here and don't go to that world too early."
After being attacked, Tui's body gradually turned into pieces. Before it disappeared, Tui made a self-deprecating evaluation of his life, saying that Kakashi was the pillar of the new era, and refused Naruto's help, making Naruto a naruto.
Extended data:
The final destination of earthmoving
The powerful Ye Huiji and Heijue were finally blasted by the seventh class with six roads, and the long war ended. Kakashi once again encountered the soil of the spiritual world.
I don't know what to say when I talk to Tui. Kakashi said that it is enough to say goodbye as such a good friend. Tui only said a few short words "Thank you, Kakashi" to Kakashi.
Immediately, Kakashi lost Sally Gump's pupil strength after bidding farewell to Dai Tu, "writing round-eyed Kakashi" will no longer appear in the forbearance world, and Uchiha Obito can finally leave this world peacefully. After the war, Konoha, like Otsu's last wish, was praised as Huo Ying by Kakashi and Naruto successively, and the world ushered in peace.
Baidu Encyclopedia-Uchiha Obito