I am Naruto, with the Power of the Door-Door Fruit

A young man from Earth journeyed back to the world of Naruto and was reborn as Uzumaki Naruto. From infancy, his destiny was intertwined with mysterious powers: the influence of the Flying Thunder God, granting him incredible speed, and Hollow Kamui, giving him the ability to manipulate space. A miracle occurred when he witnessed the space leading to the world of pirates tear open, and from that rift, a rare Devil Fruit, the Door-Door Fruit, fell into his hands. Mastering the power of the Devil Fruit and opening the gate to a world within his consciousness, the young Naruto secretly left Konoha. In the harsh world of pirates, he forged himself, learning the six styles of the Navy's Rokushiki and mastering the three types of Haki. Years later, the blonde boy returned to Konoha with a body of steel and skilled in martial arts. With power far surpassing his age, he punched through the Hokage Building, leaving behind awe and fear, and then struck the dark headquarters of Root. "Fourth Raikage," he challenged with conviction, "come down and feel my Armament Haki!" With a confident smile, he challenged the Legendary Sannin, "Big Sister Tsunade, let's test our strength in an arm wrestle!" And with a confident gaze, he teased the Fifth Mizukage, "Mei Terumi, come here and let me give you a passionate kiss!" [Raw: 木叶：我鸣人双穿海贼]