Naruto: Kill Me a Few More Times and I Will Be Invincible

Uchiha Rento has a system that allows him to become stronger as long as he is killed. But the system has prerequisites: 1. More than three ninjas must be present when you die, and when you die, more than three people must be moved by your death. 2. The death scene must be witnessed by the protagonist, and the protagonist must be moved by your death. Therefore, Uchiha Rento began his own path to death. He took better care of Naruto than Iruka and the Third Generation. In order to prevent him from eating instant noodles, he went back to his house to cook every day after get off work. When he was called a cursed child by his children, Rento told Naruto the truth about his parents. He was the son of a hero. When Naruto was bullied, he taught him ninjutsu and let him beat up the children who bullied him. For Naruto, Rento is also his brother and father, his only relative. However, on the night when he stole the book of ninjutsu, Rento was pierced from behind by a fuuma shuriken in order to save him, and died in front of him. Naruto: "Now that Rento is dead, I have no intention of explaining right and wrong! Damn ANBU ninja! Give me brother Rento! The art of multiple shadow clones!" ... The next day, Rento, who had resurrected from the Uchiha family's funeral, looked at the panel in front of him with a smile on his face. [Body: D-C] [Ninjutsu: D-C] [Fantasy: E-D] [Chakra: E-D] Comprehensive evaluation of strength: Elite Chuunin