If adopted by Shino in fanfiction, Naruto's character could change in several ways. For one, he'd likely become more attuned to nature, since Shino has a strong connection to the bugs in nature. Also, his fighting style might become more strategic and less brute - force - oriented. Shino could teach him to use his surroundings and opponents' weaknesses better. And Naruto's sense of family might shift. Instead of always longing for the acceptance of the village as a whole, he'd have a more personal family unit with Shino, which could make him more content and less desperate for validation from others.
His confidence could take on a different form. Naruto is usually loud about his confidence, but with Shino as his adoptive father, he might develop a quieter, more self - assured confidence. Shino could show Naruto that true strength doesn't always need to be shown off. This would lead to Naruto being more of a thinker and less of a show - off in combat situations, which would be a significant change to his character.
Well, one possibility is that Shino, with his calm and observant nature, could teach Naruto a different way of looking at things. Maybe he'd train Naruto in his unique bug - related jutsus, which would give Naruto an edge in combat. Also, Shino's quiet support could help Naruto deal with his inner demons in a more introspective way.
In fanfiction, Naruto and Shino's friendship can be really interesting. Naruto's exuberant personality contrasts with Shino's more reserved nature. For example, Naruto might be the one to drag Shino into all sorts of adventures, while Shino would use his intelligence and bug - related skills to get them out of trouble. Their friendship could also develop over training sessions, with Naruto learning about Shino's unique abilities and respecting him more for it.
One major change would be in Naruto's eating habits. The Akimichi clan is known for their large appetites. Naruto would likely be introduced to a whole new level of hearty eating. He might also gain a different perspective on body size and strength, as the Akimichi use their size to their advantage in combat. In terms of his ninja skills, he could be trained in the Akimichi clan techniques, which are quite different from what he would have learned otherwise. This could make him a more versatile fighter, able to combine his original Uzumaki abilities with the unique jutsu of the Akimichi.
In a fanfiction regarding Shino's eyes, his eyes might be the key to an ancient shinobi technique. For example, his eyes could unlock a hidden jutsu that was lost for centuries. This jutsu could be related to insect control in a more profound way, like being able to communicate with all insects on a spiritual level, not just the ones he summons. This would give him a huge advantage in both intelligence - gathering and combat.
In some fanfictions, Shino's time travel forces him out of his comfort zone. He may be more reserved in the original series, but when he travels through time, he has to be more outspoken to get things done. For example, if he travels back to a time when his clan was in trouble, he has to be more assertive in protecting them. This makes him grow as a character, becoming more confident in his abilities.
At first, Naruto might become more secretive. He'd be hiding his new 'profession' from his friends, which is very different from his usual open - natured self. This could cause some internal conflict as he doesn't like lying to them.
One common theme is friendship evolving into something deeper. Since Naruto and Shino start as comrades, the fanfictions often show how their bond changes. Another theme could be acceptance, as they come from different backgrounds in the Naruto world.
He'd bring a new sense of hope. The Hellsing organization is often mired in dark and violent affairs. Naruto's positive attitude could be a breath of fresh air for the members. For example, Seras might be inspired by Naruto's determination to protect those he cares about.
Another theme is his bug abilities. Fanfictions often expand on how his bugs can be used in different ways, like for espionage or in unique battle strategies. For instance, there are stories where Shino uses his bugs to solve mysteries within the village. Also, his relationship with other characters, especially his team members, is a common theme. Some fanfictions focus on how he interacts with them and how they influence his growth as a ninja.
He would probably be more power - hungry. Thanos was constantly seeking power through the Infinity Stones. Naruto, who has always been about protecting his village and friends, could shift his focus more towards personal power gain. This might lead him to isolate himself from his friends as he pursues greater power, just like how Thanos was mostly alone in his quest.