Chapter 1 - Chapter 1 Goku who first entered the world of Hokage

After the battle with the Evil Dragons, Goku bid farewell to everyone and rode the Shenron away from Earth. "Shenron, where are we going?" Lying comfortably on Shenron's back with his hands behind his head, Goku asked casually. Shenron stayed silent for a while before replying in a deep voice, "Goku, because of the great deeds you've done for the world, you have been granted a chance to travel to another world. Would you like to go?" "Another world? Travel?" Goku blinked curiously and then asked, "Will there be strong warriors I can fight with?" This time, Shenron was silent even longer. "Sorry, Goku. I don't know if there are people as strong as you in that world. But I do know those worlds have their own unique ways of training and fighting. You might find them refreshing." "I see." Goku grinned widely. "Sounds fun! Shenron, send me there!" — The World of Naruto, Year 60 of the Hidden Leaf Village. Kakashi and his Team 7 had just entered the Land of Waves, escorting Tazuna to his home. "Here!" "No, over here!" Naruto hopped around like an excited rabbit, pouncing into bushes on one side, then throwing kunai at trees on the other. "Hey, Naruto, don't throw kunai around. It's dangerous," Kakashi said with a half-lidded, helpless look. Sasuke stood expressionless, watching quietly, while Sakura yelled in frustration, "What are you doing, Naruto! There's nothing there!" "Ahem, let me check again. I swear I saw something just now." Naruto coughed awkwardly, then marched ahead with forced confidence. After Tazuna revealed the truth about their mission, they realized it was no longer a simple C-rank task—it had become a B-rank mission, involving enemy ninja attacks and unknown dangers. They had already been ambushed once, and Naruto was deeply dissatisfied with his earlier performance. Determined to prove himself, he now tried hard to spot the next enemy. "Hmph! I'll find them for sure!" Naruto kept muttering while looking around— BAM! Suddenly, he collided into what felt like a solid wall and fell hard to the ground. "Ouch! That hurt!" Holding his head, he frowned in confusion. He hadn't wandered off the path, so how did he hit something? Before he could look up, two figures appeared beside him in a flash. One grabbed his collar and flung him backward. "Waaaah!!" After flailing wildly, Naruto landed hard on his backside. "What are you doing?!" As he was thrown, he recognized the two figures—it was Kakashi-sensei and Sasuke. His anger rose for a moment but quickly faded. Because standing before him was a stranger. The man had an unusual appearance—an orange outfit unlike anything Naruto had ever seen and spiky hair shaped like a crab shell. The man scratched his head with a sheepish smile. "Sorry, sorry. I didn't mean to bump into you." It was Goku—sent by Shenron to another world. After restoring him to his adult form and dressing him as he requested, Shenron had transported him straight into this world. He had just arrived—right in front of Naruto. Still dizzy from the teleportation, Goku didn't react in time, and the searching Naruto crashed headlong into his steel-hard body. "Who are you?" Kakashi's expression turned serious. The man had appeared so suddenly that even Kakashi hadn't seen how—his instincts screamed danger. 'Judging by his clothes, he's not a ninja.' 'A samurai? Doesn't seem like one.' 'Then who is he? Is he here to kill Tazuna?' With his mind racing, Kakashi tightened his grip on his kunai—until the stranger laughed brightly. "My name's Son Goku!" Son Goku? Everyone paused, searching their memories. None had ever heard that name. "Hey! Son Goku, right? I forgive you!" Naruto got up, dusted himself off, and spoke casually as if nothing strange had happened. "Hey, hey~ he might be here to kill Tazuna!" Sakura whispered nervously, shielding Tazuna. "Huh? Really? Then I can't forgive him after all!" Naruto's cheerful face hardened instantly. He drew a kunai, crouching into a fighting stance. Goku, hearing their exchange, raised his hands. "Wait, wait—you've got it all wrong, haha." He scratched his head again, clearly troubled. Kakashi, however, could sense the man's pure, gentle energy. Slowly, he lowered his weapon and gestured for Sasuke to do the same. But the next instant, Goku's eyes narrowed sharply. Kakashi's heart tensed. A sharp whistling sound sliced through the air— A massive blade spun out from the forest, flying straight toward Naruto and the others! "Get down! Now!!" Kakashi's voice boomed. Sakura reacted instantly, tackling the stunned Tazuna to the ground. Naruto, having already relaxed after sensing Goku's friendliness, was a moment too slow. By the time he realized the danger, the giant blade was already upon him—about to cleave him in two. "Naruto!!" Kakashi's pupils contracted—too late to save him. Sasuke, too, froze in horror, fear surging in his chest. CLANG!! At that critical moment, a figure appeared in front of Naruto. With a single casual slap, he sent the massive sword flying away. 'I… I'm alive?' Naruto stared blankly at his savior— It was Goku, the stranger they had just met. After deflecting the sword, Goku's easy smile returned. "You okay?" Hearing that warm, caring tone, Naruto felt something stir inside him. "Y-yeah, I'm fine." Whoosh! Kakashi landed beside them, bowing slightly. "Thank you for saving Naruto." His voice carried both relief and fear. Not only had the Third Hokage entrusted Naruto's safety to him, but Naruto was his own student—he couldn't bear to lose him. Then his expression hardened as he looked toward where the sword had come from. If he was right, that weapon was one of the Seven Ninja Swords of the Mist— The Executioner's Blade. And its owner could only be one person— The rogue ninja of the Hidden Mist— Zabuza Momochi, the Demon of the Mist! Moments later, a tall, lean figure emerged from the trees, carrying a massive blade on his shoulder. He glared coldly at Goku and sneered, "You bastard… you dare ruin my hunt?"