In the world of ninjas, loyalty and comradeship are highly valued. Naruto considers Sakura as part of his team, even from a young age at school. Saving her from bullies is a way of showing his loyalty. Additionally, Naruto is a kind - hearted person deep down. He has a big heart that can't tolerate seeing the defenseless being harassed. And he might also be motivated by the fact that he wants to uphold the values of the ninja school, where bullying should not be tolerated.
Well, Naruto has a strong sense of justice. He can't stand to see anyone being bullied, especially someone he cares about like Sakura. He might also want to prove himself. By standing up to the bullies, he shows that he's not the weakling some people think he is.
The bullies could also be influenced by their parents or the village's general perception of Naruto. If the adults in the village see Naruto as a troublemaker or a potential danger (maybe because of the Nine - Tails within him), the kids might pick up on that and bully him as a way to fit in with the adults' views.
It was a normal day at the ninja school until Sakura found herself surrounded by bullies near the training grounds. They were making fun of her skills and her friendship with Naruto. As the situation was getting worse, Naruto, who had been practicing his stealth skills, quietly approached. He suddenly jumped in between Sakura and the bullies. 'You think you're so tough? Well, you're not!' Naruto said defiantly. The bullies laughed, but Naruto quickly used a simple but effective ninja trick to make them trip and fall. They got up, embarrassed and angry, but seeing Naruto's determination, they decided to leave, and Sakura hugged Naruto tightly, thanking him for saving her.
Well, perhaps Naruto has been observing Ino for a while and when he finally sees the school bullies picking on her, he steps in without hesitation. He might use his Uzumaki charm to first try and talk the bullies down. But if that doesn't work, he'd be ready to fight. His Rasengan might not be necessary but his basic ninja skills would be enough to send those bullies running. And this event could be the start of a closer friendship between Naruto and Ino.
Maybe Sakura is being controlled by some dark force and is about to harm Naruto, so Gaara steps in to save him.
One motivation could be self - preservation. Draco might realize that if Voldemort kills Harry, it will lead to an all - out war that could destroy everything he knows. By saving Harry, he hopes to find a more peaceful solution and protect his own family and the wizarding world in a broader sense.
Eric might also see Tris as an asset to his own plans or goals. If he wants to gain more power or influence within their community, he might think that by saving Tris from Peter, he can earn her loyalty and have her on his side. And Tris is known for her strong will and skills, which can be useful to Eric.
In many Naruto fanfictions, Naruto might save Sakura from bullies by using his ninja skills. He could use his shadow clone jutsu to surround the bullies and intimidate them. Maybe he'd also give them a stern talk about kindness, as Naruto has a big heart.
One scenario could be that the bullies are picking on Sakura at the ninja academy. Naruto arrives late and sees what's going on. He immediately challenges the bullies to a sparring match, which they can't refuse because of Naruto's status as a top student. During the match, Naruto easily outmaneuvers them and makes them look foolish, causing them to run away in embarrassment.
It's possible that Mizuki has had a change of heart. He might have seen the error of his ways in the original story and now wants to make amends by saving Naruto. He could have reflected on how his actions in the past were wrong and this is his way of redeeming himself. In this fanfiction, he might be trying to create a new, positive relationship with Naruto based on mutual respect and friendship.
Jealousy could be a motivation. If she always felt overshadowed by Sakura, she might turn to criminal activities to gain power and attention. For example, she could steal important ninja scrolls to learn powerful jutsus quickly.