At first, Naruto might be a bit hesitant. He's not used to having something so personal from his parents. But then, his curiosity would get the better of him, and he would slowly unroll the scrolls, his hands trembling slightly as he realizes that he's about to learn things he has always dreamed of knowing about his parents.
In the fanfiction, the scrolls could reveal a lot. For example, they might disclose the circumstances of Naruto's birth. Maybe there are prophecies written in them about Naruto's future. There could be stories of his parents' love and how they made sacrifices for the village and for Naruto. It could also be that the scrolls contain some sort of training method that was unique to his family, which would help Naruto become even stronger as a ninja.
The scrolls could hold secret jutsu. Uzumaki clan was known for unique abilities, so it might be something like a powerful sealing jutsu. Maybe Naruto discovers a new way to enhance his Rasengan using the knowledge from the scrolls.
If the scrolls contain difficult knowledge or a great responsibility, Naruto might become more serious. He would have to grow and adapt to handle whatever new situation the scrolls present. For example, if there are dangerous jutsu in the scrolls, he has to be more cautious and mature in his decisions regarding their use.
He might find that the jutsu scrolls are not as straightforward as they seem. There could be some sort of hidden message or a requirement to unlock the full potential of the jutsus. For example, the scrolls could be protected by a chakra - based lock that only Naruto's unique chakra can break after he has passed certain trials. And once he does unlock them, the new jutsus could change the way he fights completely.
Well, it could lead to him uncovering secrets about his family. Since he is an Uzumaki himself, these scrolls might have information about his parents or ancestors that he never knew before. This could give him a deeper understanding of his heritage and place in the ninja world.
It could speed up his training significantly. If the jutsu scrolls contain advanced techniques, Naruto can learn from them and gain new skills faster than just relying on his regular training with Kakashi. For instance, if there's a jutsu for enhanced strength, he can add it to his arsenal and become stronger in combat.
Iruka could play a role. He was Naruto's first teacher who believed in him. He might have some small piece of information that starts Naruto on his journey to find his parents. Then there's Tsunade. As the Hokage, she has access to a lot of secret files. She could either be an obstacle, not wanting Naruto to dig too deep, or she could be a helper, providing him with crucial information. And of course, the Nine - Tailed Fox. It was sealed inside Naruto by his father, so it might have some memories or knowledge related to Naruto's parents that it could share with Naruto.
Well, it could be that Naruto is on a mission and accidentally uncovers a powerful jutsu that has the power to show the past. And through this, he sees his parents. His father might give him some advice on how to become a better ninja or how to handle the power within him. His mother could tell him how much she loved him and why they had to sacrifice themselves. Then Naruto could use this new understanding to face his enemies more bravely.
He would become more confident. Knowing that he has access to the secrets of his clan through the scrolls would boost his self - esteem. He'd feel like he has a stronger connection to his roots, which would show in his attitude towards his ninja duties.
He might be initially very confused and hurt. Naruto has always longed for a connection to his parents, and finding out they gave away his birthright could make him feel like he was unwanted or that they didn't trust him with it. He could go through a period of self - doubt, wondering if he is really worthy of being their son.