Naruto might handle it with his usual optimism. He could see it as a new adventure and be open - minded towards getting to know Ino better. Ino, on the other hand, might be a bit more cautious at first. She might be worried about how this will change her life and her relationships with other people.
Perhaps in some fanfictions, the arranged marriage is part of a political move to strengthen the alliance between their clans. Naruto, being the hero of the village, has to accept it. Ino, on the other hand, tries to use her intelligence to find a way out but instead finds herself drawn to Naruto's determination and kind heart.
At first, it might be rocky. Naruto may see Ino as just another girl pushed into his life, and Ino might think Naruto is too wild. But as they share experiences, like going on missions together for the sake of the village - which is now also their future together - they start to respect each other. They could learn about each other's dreams and fears, and gradually, a real bond forms.
Shikamaru, being Ino's friend, might be skeptical about the whole arranged marriage thing. He knows Ino's strong - willed nature and doubts if she'll be able to adapt to this new situation. However, as he sees Naruto's positive influence on Ino, he starts to support it.
Well, perhaps in the fanfiction, the arranged marriage is part of a prophecy. Naruto, being the hero he is, initially balks at the idea of an arranged marriage with Ino. However, Ino, who has secretly had a crush on Naruto for a long time, tries to make the best of it. As they go through the motions of getting to know each other for the marriage, they face many challenges together, like dealing with jealous suitors from both sides and also trying to convince their friends that this arranged marriage might not be such a bad thing after all.
One interesting plot development could be Naruto initially being hesitant about the arranged marriage. He might worry about how it will affect his dreams and his relationships with other friends. But as time goes on, he starts to see Ino's good qualities and they gradually fall in love. For example, Ino could be very supportive of Naruto's goal to become Hokage, which changes his view of her.
One possible scenario in such a fanfiction could be that Temari initially resists the arranged marriage. She is a strong - willed character from Suna. However, as she gets to know the other person (let's say Naruto for the sake of this fanfiction), she starts to see his good qualities. Maybe Naruto's determination and his ability to make friends easily start to win her over. They could go through various adventures together, which gradually makes their relationship more than just an arranged union.
One idea could be that Naruto is initially hesitant about the arranged marriage. He's so used to his freedom and his own way of life. But as he gets to know Hana, he discovers her kindness and loyalty, especially towards her ninja dogs. This makes him start to see the potential in their relationship.
Naruto is very outgoing and extroverted. He loves being around people and making friends. Artemis, on the other hand, is more reserved and independent, used to living in seclusion with her huntresses. So Naruto might constantly try to include Artemis in social situations that she would rather avoid.
Common themes could include family expectations which led to the arranged marriage in the first place. In the fanfic, Ino might have to deal with the pressure from her family as well as her own feelings towards her new partner. Another theme could be the discovery of new aspects of her partner, which adds to the romantic and relationship - building part of the story. And of course, the 'lemon' aspect might imply a more passionate and physical side of the relationship as it develops.