He could start by training intensively with different weapons under the guidance of some old and experienced ninja. They might teach him the proper techniques and stances for using each weapon effectively.
Maybe he discovers some ancient scrolls that contain secrets about weapon - mastering. These scrolls could have been lost for centuries but by chance, Naruto comes across them. The knowledge in the scrolls allows him to understand how to infuse his chakra into weapons in ways that were previously unknown, thus making him a weapon master. He would then practice these new skills over and over until he masters them.
It could also be that Naruto's own unique ability to adapt and his large amount of chakra play a major role. His chakra gives him the power to experiment with different weapons and find ways to make them more powerful. For example, his ability to create shadow clones means he can practice with multiple weapons simultaneously. And his never - give - up attitude drives him to keep trying new things with weapons until he reaches a high level of mastery.
Chapter 357, "A Second Demon", is the clearest early answer because it turns Damien's situation into a concrete plot event. Early on, [Kill Count: 2,027 / 5,000] [Combined Summon Kills: 1,154] Bang!. By the end, – Only targets deemed hostile will be burned and consumed.. Inside the broader family politics storyline, the chapter closes with Then it moved., which gives the main cast a stronger narrative position and pushes the power growth onward.
Chapter 355, "A New Participant", is the clearest early answer because it turns Arielle's situation into a concrete plot event. Early on, [Kill Count: 1,759 / 5,000] [Combined Summon Kills: 622] The ground.... By the end, I'll just keep killing till something pops up." ~~~~~ Arielle moved.... Inside the broader technology upgrade storyline, the chapter closes with A new participant had arrived., which gives technology upgrade a stronger narrative position and pushes the power growth onward.
Chapter 415, "An Inside Attack", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with Apnoch shook his head, a wry smile tugging at his lips. and follows through with It was inside of Delwig, the impregnable city..
Chapter 300, "A Battle In The Testing Phase", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with All Year Three students walked toward the speed platform—a straight... and follows through with I hope they don't provoke me though." Damon murmured..
Chapter 385, "Tell Me Where", is the clearest early answer because it turns Razel's situation into a concrete plot event. Early on, The moon was high, almost reaching it's peak by the time Razel Acheon.... By the end, Draped in deep charcoal with silver trim.. Inside the broader family politics storyline, the chapter closes with "Tell me where. Now., which gives the central conflict a stronger narrative position and pushes the power growth onward.
Chapter 82, "Whether I Can Do It or Not Is My Business", is the clearest early answer because it turns Rogel Camp's situation into a concrete plot event. The chapter turns that into something concrete by moving from Leader, the number of people has been counted. to I won't say much more." Xia Hong did not say much, and after two....
Chapter 64, "Letting These Two Kids Off Easy", is the clearest early answer because it turns Solidified Fire Oil's situation into a concrete plot event. The chapter turns that into something concrete by moving from Hehehehehe....." The Wood Puppet Monster peered into the ravine,... to The Wood Puppet Monster was talking about the Solidified Fire Oil!.
Chapter 82, "Whether I Can Do It or Not Is My Business", is the clearest early answer because it turns Cold Beast's situation into a concrete plot event. It opens with Leader, the number of people has been counted. and closes on I won't say much more." Xia Hong did not say much, and after two.... The key payoff is that the chapter closes with As Xia Hong finished speaking, the whole place fell silent., which gives Cold Beast a stronger narrative position and pushes the power growth onward.
Chapter 46, "After modification: Chapter 46 Wrong, there's an issue [Please follow!]", is the clearest early answer because it turns Xu Ning's situation into a concrete plot event. The chapter gives readers a real answer by opening on Hearing Shi Qing's polite request to leave. and ending on After the alarming incident of the deceitful monster attacking Xia....
Chapter 506, "Let Them Come", is the clearest early answer because it turns Let Them Come's situation into a concrete plot event. It opens with And then it was replaced with something else. and closes on They didn't make it ten meters.. The key payoff is that the chapter closes with The hunt was far from over., which gives Let Them Come a stronger narrative position and pushes the power growth onward.