Perhaps Naruto, with his connection to the Nine - Tails' chakra, is able to access a special realm where the souls of the dead reside. In this realm, he manages to convince Hashirama and Madara to return to the living world. He could use his Uzumaki charm and his understanding of their pasts to persuade them. Since Naruto has always been good at making friends and understanding people, this might be a viable way.
One way could be through some powerful forbidden jutsu. Maybe he discovers an ancient scroll that contains the knowledge of bringing back the dead, which he then masters with his strong will and determination.
Chapter 223, ", The Message from Nest Capital World", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. The setup is Miss Wang Qi came and went in a hurry., but the pressure keeps building through After spending one night there, she boarded a spaceship and left the....
Chapter 170, "Mother (7000-word addition)", is the clearest early answer because it turns Rage Owl Star's situation into a concrete plot event. Early on, Not long after finishing the conversation about her stay or departure.... By the end, He continued, "Although I don't know to what extent you have rebuilt....
Chapter 286, ", Heading West", is the clearest early answer because it turns Yan Fangxu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Gu just asked a few questions before nodding, telling Yan Fangxu to... and ending on In his view and that of his warriors, it seemed more like a sweep of....
Chapter 268, ", Alliance Output", is the clearest early answer because a shaky connection becomes usable in the plot. Early on, Gu Hang had some time, so he spoke with Wu Jiarong a bit more.. By the end, Mobilizing troops, forming the Rage Bear Legion; reorganizing twelve....
Chapter 339, ", Fine Gold, Knight and Titan", is the clearest early answer because it turns Alliance's situation into a concrete plot event. The chapter turns that into something concrete by moving from Of course, due to Gu Hang's selection process for cultivating... to No matter how fierce the Lion Tank is, it can only be considered a....
Chapter 377, ", Win-Win", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The ultra-high profits and value of the shipbuilding industry filled... and follows through with This group had come to bestow an honor upon Gu Hang..
Chapter 262, "Settlement of the Heijian Star Campaign", is the clearest early answer because it turns Rage Owl Star's situation into a concrete plot event. Early on, The Luman Kingdom wasn't large; in terms of size, it was about as big.... By the end, However, before that, at the start of the fighting, Perbov led three....
Chapter 335, ", Tax Season Again", is the clearest early answer because it turns Alliance's situation into a concrete plot event. It opens with Gu Hang and the senior officials of the Alliance Government designed... and closes on This would lead to a considerable reduction in agricultural.... The key payoff is that the chapter closes with In the Alliance, there exists the Star Realm Army known as the Rage Bear Legion.
Chapter 236, ", Success in Killing the God! Death of the Evil God!", is the clearest early answer because the violence around Evil God becomes final instead of hypothetical. It opens with Primal Fury Owl planned to slip away, no longer moving forward,... and closes on The more furious Evil God summoned even more lightning, striking....
Chapter 199, ", New Blood in the Battle Group", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter turns that into something concrete by moving from Moreover, Anat was about to enter a special advancement training... to Moreover, during this period, he distinctly felt that he had....