I think Naruto would start by defining what a Jinchuriki is and then share some stories about other known Jinchuriki to make it more understandable for Sarada.
Well, being the jinchuriki of Saiken would likely make Naruto more in tune with water - based chakra. He might become more adaptable and fluid in his fighting style. His character could also grow to be more empathetic towards other jinchurikis and their struggles, as he now shares a similar burden. This new status might also lead to new friendships or alliances with those who have an affinity for Saiken's power.
Some of the villagers might be really happy for them. Naruto is a hero to the village, and Tenten is a respected ninja. People would see it as a positive thing, a sign of new beginnings and love in the village. They might even start to speculate about their future together, like whether they'll have ninja kids who will be super powerful.
She could say yes. Maybe she's always secretly liked Harry and this is her chance to get to know him better.
Well, it could change the plot in many ways. For one, Naruto would be incredibly powerful right from the start. His relationships with other characters might also be different. Since he's the Jinchuriki of multiple Bijuus, the village's view of him could be more of a weapon than a person. And he might have to deal with more internal struggles as he tries to control all that power.
Tsunade would probably be shocked at first. Naruto is like family to her. She might immediately refuse and try to talk some sense into him. She could say something like 'Naruto, you're stronger than this. There's always a solution to every problem.'
Naruto could respond with anger at first. He has given so much to the Leaf Village, and this betrayal would be like a slap in the face. However, his kind heart might also make him wonder if there is a misunderstanding. So, he could start by trying to communicate with the villagers he trusts. If that fails, he might leave the village for a while to get stronger and then come back to confront those who wronged him.
Naruto could be a bit hesitant at first if the situation is really complex or dangerous. He might need to think about the implications and if he is truly capable of helping. But in the end, his loyalty to Sakura and their friendship would likely make him agree. He might say something like 'Sakura - chan, don't worry. I'll do whatever I can.'
He could also try to dodge her attacks while still trying to reason with her. Naruto has a strong sense of loyalty and friendship, so he would likely be very reluctant to fight back against Sakura. He might keep asking her why she's doing this and try to get through to her emotional side.
The mother can also use this as an opportunity to have a talk about appropriate behavior and respect. She could say, 'We respect each other in this family and that means not asking for or talking about things that are not suitable. Let's focus on things that can make us better people, like sharing our dreams and goals.'
Naruto's influence would likely make Sarada more determined. His never - give - up attitude is infectious. So, Sarada might face challenges with more tenacity.