Naruto: Apprentice to Orochimaru and Master Core Technology

[Plot direction + dark flow + political intrigue + scientific research madman + single female protagonist] I, Takashi Uchiha, am a time traveler. My understanding of the original plot is my biggest golden finger. It is my life-long pursuit to get involved, add fuel to the flames, and destroy Konoha. He was planted with a curse seal at the beginning but survived. Taking this as an opportunity, he became a disciple of Orochimaru and learned his superb scientific research technology. Find a girlfriend from the Hyuga family and use this as an opportunity to get involved with the Hyuga clan and prepare for rebellion. Abolish Uchiha Fugaku and completely divide the Uchiha clan. Uchiha who fight among themselves are good Uchiha, so as to reduce the presence of the Uchiha clan in Konoha Village, reduce the taunt value, and avoid sudden genocide. He became a disciple of Feng Shuimon and his wife, learned Rasengan and sealing techniques, and prepared to steal the Nine-Tails on the night of the Nine-Tails. Cooperating with Danzo has become the biggest protection for my activities in Konoha. Many years later, civilian ninjas from Konoha Village fled in large numbers, the middle-level Bloodstained families were instigated to flee, and the top leaders were massacred by Danzo. He became the successor Hokage, started the crazy tailed beast transformation experiment, and eventually triggered the siege of the four hidden villages. The Leaf Village was destroyed, the Fire Country was divided, and the Whirlpool Country became a rising star, creating a new pattern in the ninja world.