They could go on a mission together in the fan fiction. During this mission, they face challenges that force them to rely on each other and understand each other's strengths and weaknesses. For example, Kushina might be strong in sealing jutsu and Naruto in his Rasengan techniques, and they combine their skills to defeat the enemy.
Have them share their dreams and fears. Naruto could tell Kushina about his dream of becoming Hokage and how he sometimes fears he won't be good enough. Kushina could then share her own experiences growing up as an Uzumaki and how she overcame her own insecurities. This deepens their relationship as they realize they have more in common than they thought.
Their relationship could be developed through shared experiences. For instance, they could go on a mission together where they face a powerful enemy. During this mission, they would have to rely on each other's skills, which would deepen their bond.
It could be developed through a series of events where Kushina tries to make amends. She might leave little signs or messages for Naruto, showing her love and regret. As Naruto starts to notice these things, he becomes curious about her true intentions. Eventually, they have a face - to - face encounter where Kushina explains everything. Naruto, seeing her sincerity and the love she has for him, forgives her, and they start to build a new, stronger relationship based on honesty and understanding.
They could be involved in a cross - dimensional adventure. Maybe Naruto accidentally opens a portal to a dimension where Kushina is still alive but in a different situation. They then have to adapt to this new world together and in the process, their relationship evolves. It could involve learning new skills from each other and facing strange creatures. Also, their communication could be a key factor. If Naruto starts to communicate with Kushina in a different way, like through a special Uzumaki - only form of telepathy, it would be a unique aspect of their relationship development.
In fanfiction, the relationship might start with curiosity. Kushina could be curious about Naruto's demon side. She starts to study it and in the process, gets closer to Naruto. As she helps him understand and control his powers better, they become friends. Then, as they spend more time together, they realize they have feelings for each other that go beyond friendship. They support each other through difficult times, like when Naruto has to face the negative aspects of his demonic form, and Kushina has problems in the village. This continuous support deepens their relationship.
In this type of fanfiction, their relationship could be developed through Naruto finding a way to communicate with Kushina's spirit. Through this communication, Kushina can share her experiences of being neglected with Naruto. Naruto, in turn, can tell her about his own struggles. This exchange of experiences can create a stronger bond between them, and Naruto can then strive to make sure that no one else in the village feels the neglect that they did.
For Naruto, you could show his growth in terms of his leadership skills when he's with Naruko and Kushina. He could learn to be more patient and understanding, especially when Naruko might have a different approach to things. For Naruko, her character could be developed by showing her struggle to be recognized in a world where Naruto already has a reputation. Kushina could be developed by exploring her motherly side more deeply, as she interacts with both Naruto and Naruko.
In this fanfiction, their relationship would evolve in a very special way. Naruto, with his newfound godlike status, would be more in tune with Kushina's emotions. He would be able to sense if she was having a bad day or if the baby was causing her discomfort. He would use his powers to comfort her, like creating a warm, soothing energy around her. Kushina would be in awe of Naruto's growth but also rely on him more. They would talk about how to raise their child, with Naruto's experiences as a hero and Kushina's wisdom combining to form a unique parenting plan for their soon - to - be - born baby.
Their relationship could start with Kushina being curious about Demon Naruto's powers. This curiosity could lead to them spending more time together and gradually building trust.
Build their relationship gradually. Start with small interactions like Naruto helping Kushina find something she lost. Then, as they spend more time together, they start to trust each other more. Slowly introduce deeper conversations about their fears and hopes. This way, the relationship feels natural and believable.
I really like 'Kushina's Second Chance'. In this fanfic, Kushina gets a chance to come back to life and be with Naruto. The author does an amazing job of exploring their emotional bond. It has some really heart - warming scenes where they interact and get to know each other better. It also adds some interesting twists to the Naruto universe by having Kushina around.