In some fanfictions, Naruto might use his new jutsu that he's developed through intense training. He could overpower Kabuto with his Rasengan variations, like the Big Ball Rasengan, and rescue Tsunade while Kabuto is distracted by the powerful attack.
Naruto might also use some of the special items or powers he has acquired in the fanfiction world. Maybe he has a magical amulet that can nullify Kabuto's attacks for a short time. He uses this opportunity to dash towards Tsunade and get her to safety. Then he could use his own natural skills like his agility and reflexes to keep Kabuto at bay until help arrives.
Another plot twist could be that the situation Tsunade is in is actually a trap set by an enemy to lure Naruto in. So, while Naruto is trying to save Tsunade, he has to also deal with the real mastermind behind the whole thing. This would add an extra layer of complexity to the story.
Naruto's understanding of sacrifice could deepen. If he has to put himself in great danger to save Tsunade, he'll learn more about what it means to sacrifice for others. He might recall the sacrifices of his predecessors like the Hokages and use that as motivation to keep going, even when the odds are against him.
To develop Fem Kabuto's character, give her a personal goal that is separate from Orochimaru's. In the fanfiction, she might strive to find a cure for a certain ninja - world disease using her medical knowledge. This not only shows her as more than just a sidekick to Orochimaru but also gives her a positive and independent identity. As she pursues this goal, she can grow and change, and her interactions with Naruto can be shaped by this new - found purpose.
Well, in Naruto fanfiction, Kabuto could offer his knowledge of forbidden jutsu to Naruto's side. This knowledge might be crucial in dealing with a super - powerful enemy that the regular ninja techniques can't handle. He could also use his shape - shifting abilities for espionage. He could transform into an enemy spy within their ranks and gather intel. This would give Naruto and his comrades a better understanding of the enemy's movements and intentions, which is really helpful in a fictional story.
Naruto could inherit Tsunade's medical ninjutsu skills. This would be a huge addition to his arsenal. He could use it to heal his comrades more effectively during missions. Also, he might inherit her ability to store chakra in his forehead. This would give him an extra boost of power when he needed it most. And perhaps he could also learn some of Tsunade's more precise combat techniques that rely on her strength and accuracy.
There is also 'Tsunade's Journey'. This fanfic delves into Tsunade's past, exploring her relationships with her former teammates and how those experiences shaped her into the strong - willed woman she is in the Naruto series. It might also include her adventures outside of the village in her younger days.
If Tsunade kisses Naruto, it could strengthen their relationship in a mentor - like way. Naruto might see it as a sign of deep respect and trust from Tsunade. He would likely feel more confident in following her guidance. For Tsunade, it could be a way of showing her pride in Naruto's growth.
It could be an original character created specifically for this fanfiction. Maybe she's a damsel in distress with a special power or a connection to Naruto's past that we don't know yet.