People in Konoha: Building the Ultimate Uchiha

Traveling through the world of Naruto, he became Natsuhiko Uchiha, a borderline chuunin of the Uchiha clan. There are only three days left before the "Night of Genocide"! Recalling that in the original work, the Uchiha clan was guarded like dogs by the village's senior officials, and was eventually slaughtered by their "big filial son" Uchiha Itachi, even the elderly and children were not spared, Natsuhiko smiled. Will of Fire? Dogs don't believe it! Sacrifice your family for Konoha? Do you have a detonator in your head? At the critical moment, the [Ultimate Villain System] awakens! As long as you make a rebellious move that changes the plot of the original work and shocks or pains Konoha's top management and the original protagonists, you can get generous rewards! "Ding! Congratulations to the host for scolding Itachi Uchiha in public and receiving the reward: [Perfect Immortal Human Body]!" "Ding! Congratulations to the host for tearing up the sealed book, beating up Sarutobi Hiruzen, and getting the reward: [Eternal Mangekyō Sharingan]!" Since then, the ninja world has lost a cowardly member of the Konoha Guards, and has gained a Yakuza tyrant who makes the entire ninja world fearful. Uchiha Itachi: "Natsuhiko, if you do this, you will destroy the peace of Konoha!" Natsuhiko crushed the Anbu mask and sneered: "Peace? When I kill all the top leaders of Konoha, the ninja world will naturally be at peace." (Invincible flow + decisive killing + not feeling aggrieved + online IQ + punching Konoha Laoden)