Naruto: Naruto's Older Brother Cultivates Immortality from the Start and Crushes the Nine-Tails

Overwhelming power, a ruthless mastermind behind the scenes, takes off after a dozen or so chapters, who is the one person you just can't get over?, doting on his younger brother Naruto discovers only after leaving Konoha that whenever he gets even slightly hurt, countless powerful figures across the ninja world tense up. A powerful rogue immortal from the cultivation world fails his tribulation, and his soul unexpectedly transmigrates to the Hokage world, where he becomes the biological older brother of Naruto Uzumaki. He possesses supreme immortal arts and uses the true essence in his dantian to command the spiritual energy of heaven and earth, regarding chakra as an inferior energy. His very existence will become a BUG that overturns all conventional wisdom in the ninja world, a taboo in the truest sense.