Naruto: Human Emperor Banner from the Start, Refining the Entire Shinobi World

[Refreshing story + villain + demonic cultivator + ruthless + scheming]

Fang Yun has transmigrated again, this time to the Naruto world.

Complete loss of cultivation? Depletion of spiritual energy?

No problem, with the Emperor's Banner in hand, I have the world at my command!

"What? You're asking me why this Emperor's Banner is shrouded in black mist? Nonsense, it's clearly Primordial Purple Qi, just excessively concentrated!"

Naruto is too much of a saint, his transformation into a villain is progressing slowly?

It's alright, we have the Yin-Yang Gu, which can transform you and drastically change your personality.

"From this day forward, you will no longer be Naruto, but Naruko."

Are Hiruzen Sarutobi and Danzo too disgusting?

No problem, let's swap souls and make them disgust each other.

Obito was an ingrate? Itachi Uchiha was twisted?

It's alright. Revive Rin Nohara, summon the souls of the Uchiha clan, turn Sasuke against them, and make them curse these two sinners of the ages.

Fang Yuan subdued the Akatsuki organization, established the Great Love and Great Charity, and his fame spread far and wide. The ninja world was thrown into turmoil, the Fourth Shinobi World War began, and the five nations joined forces to attack him, but they were no match for him.

Fortunately, with the help of a benefactor, they barely survived and spread the method of cultivating immortality, thus improving the strength of the ninja world.

During the final battle, an unexpected event occurred; the benefactor actually…

"I'm coming clean, I am actually Fang Yun himself!"