Well, perhaps in this fanfic, Naruto's use of the chained knife could be part of a new fighting style he develops. Maybe he discovers the chained knife during a mission in a mysterious land. He then has to train hard to master it. As he is godlike, he quickly adapts and uses it to defeat powerful enemies in unique ways, like combining his chakra with the chained knife's movements.
One possible plot is that the chained knife was once used by a long - forgotten ninja. Naruto, being godlike, is drawn to it. He uses it to face off against an ancient evil that has been awakened. He experiments with different ways of using the chained knife, such as using it as a grappling tool to pull enemies closer before hitting them with his signature moves. This makes him even more formidable in combat.
In the fanfic, the chained knife could be a special weapon with a hidden power. Since Naruto is godlike, he senses this power and decides to use it. He might use it in battles against new threats to the Hidden Leaf Village. He could swing the chained knife in complex patterns, creating powerful wind-based attacks similar to his Rasengan, but with a more slicing and entangling effect.
The plot could involve Naruto being in a super - powerful form (godlike) and using the kyoketsu shoge in unique ways. Maybe he uses it to fight against powerful new enemies that are immune to his regular jutsu. He could also use it to protect his village in a more stealthy and unexpected manner compared to his usual flashy attacks.
Well, in this fanfic, Naruto's use of the Speed Force could lead to some really interesting crossovers. Imagine him meeting characters from the DC Universe who are also associated with the Speed Force. He could learn new techniques from them or teach them some of his ninja skills. In terms of the Naruto world, his newfound speed could make him a more elusive target. He could use it to quickly gather intelligence across different villages without being detected, completely changing the power dynamics in the world of ninjas.
Using the chained knife could add a new dimension to Naruto's character. It could show his adaptability. He is already powerful as a godlike being, but with the chained knife, he has to learn new combat strategies. This shows that he is always looking for ways to improve and protect his village. He might become more stealthy in combat, using the chained knife for surprise attacks.
Maybe his godlike state gives him superhuman reflexes, allowing him to handle the kyoketsu shoge knife with extreme precision. He can anticipate his opponents' moves better and use the unique features of the knife, like the chain, more effectively in combat.
Well, in the fanfic, Naruto using crystal release could be part of a mission. Maybe he's in a land where crystal release is common among the enemies. He starts to study their techniques and somehow manages to adapt it to his own style. He could then use it to save his friends during a really tough fight. Like, he creates a huge crystal shield to protect everyone from a massive attack and then turns the shield into sharp projectiles to counter - attack.
Well, perhaps the cursed knife has some special powers that Hermione discovers. It could be that she uses it to break a powerful dark magic spell. For example, the knife might be the only thing that can cut through a magical barrier protecting a dark object.
Naruto might be able to merge with the Mokoton creations. For example, he could become one with a giant wooden dragon he created and control it from the inside, giving it his own chakra and intelligence for more strategic attacks.
I'm not sure specifically as I haven't read this exact fanfic. But generally, it might involve Naruto getting caught in some sort of complex or dangerous situation related to the 'whirlpool' concept. Maybe it has something to do with Naruto's Uzumaki heritage since the Uzumaki clan is from the Whirlpool Country.
He might face powerful ninja with unique abilities. These could be ninja who can manipulate elements in very dangerous ways, like creating huge firestorms or massive floods. Naruto would have to use the kyoketsu shoge knife cleverly to counter their attacks.
One antagonist could be a corrupted version of one of Naruto's old friends. Maybe they were influenced by some dark force and now have powers that rival Naruto's. They would oppose Naruto not only because of the power of the kyoketsu shoge but also due to their twisted view of the ninja world. Also, there could be a group of interdimensional invaders who see Naruto's power and the kyoketsu shoge as a threat to their plans of conquering the ninja world. They would use their advanced technology and unique abilities to try and defeat Naruto.