The writer can also make Naruto have a different type of love language. He might express his care and affection in a way that is more platonic and not related to romantic love for Hinata. For instance, he could be very protective of her as a friend, but when it comes to romantic love, he just doesn't feel it. This can be shown through his actions and words. He might say things like 'You're like a sister to me, Hinata' which would clearly show that he doesn't love her in a romantic way.
Naruto and Hinata's relationship might grow as they face challenges together during the pregnancy. Maybe there are financial concerns or family issues that they need to deal with. As they work through these problems hand in hand, their love for each other and their commitment to their future family will strengthen. For instance, if Naruto's work as a ninja doesn't pay enough for all the baby expenses, they might have to figure out a side hustle together, and this shared experience can make their relationship even stronger.
Look at the world around you with a different lens. Notice the small details that others might overlook. For instance, the way a particular plant grows in a neglected corner of a city. Build a story around that. You can also play with time. Have a story that jumps between different time periods or where time moves at a different pace for different characters.
Their relationship can develop as they rely on each other during training. For example, Naruto might start to see Hinata in a new light when she saves him from a tricky training situation using her skills. This newfound respect can be the start of deeper feelings.
Their relationship could develop through shared experiences. For example, if they are on a mission together and Naruto saves Hinata from a dangerous situation. This could make Hinata see Naruto in a new light and deepen her feelings for him.
The fanfic could show Naruto's initial anger and confusion clearly. For example, having him raise his voice and ask Hinata how she could do this to him. Then, it could gradually show his sadness seeping in as he realizes the relationship might be over.
In some of these fanfictions, their relationship develops as they gradually remember their past. They start having strange feelings and dreams, which lead them to explore their connection. As they do so, they start to fall in love all over again, just like in their previous lives.
In these fanfictions, Naruto's personality development can be seen in how he deals with domestic life. He used to be all about big adventures and saving the world, but now he focuses on the little things that matter to Hinata and their family. Hinata's shyness starts to fade as she gets used to being Naruto's partner. She starts to voice her opinions more, especially when it comes to protecting their home and loved ones. Their personalities grow together, complementing each other more and more as time passes.
In fanfiction, their relationship often deepens as they face parenting challenges together. They support each other more and become more in tune with each other's feelings.
The Naruto characters can interact with mermaid characters through shared goals. For example, if there is a threat to both the ninja world and the mermaid's underwater realm, they would have to work together. They could exchange knowledge, like the mermaids teaching water - based jutsu secrets to the Naruto characters, and the ninjas sharing their combat skills with the mermaids.
In many fanfictions, Hinata's confidence grows. For example, she might start taking on more leadership roles in missions with Naruto. Since she has always been shy, in fanfiction, she could break out of her shell more, especially when Naruto is in danger. She becomes more assertive in protecting him and their relationship.