In a fanfiction, Naruto discovers old letters from Kushina that were hidden away. As he reads them, he gets to know a more personal side of his mother and feels an even stronger bond of love towards her. It's a story of connection through words and memories.
In a fanfiction, perhaps Kushina was able to leave a part of her chakra within Naruto when she died. This chakra has memories and emotions of her love for him. As Naruto gets stronger and faces difficult battles, this chakra activates and gives him not only power but also the feeling of his mother's love, which heals his emotional wounds and gives him the motivation to keep fighting.
Many fanfictions explore Naruto's discovery of his mother Kushina's love. Since he grew up without her, when he finally learns about her through memories or other means in fanfictions, it creates a deep emotional impact. The love can be shown as something that gives Naruto more strength and purpose. For example, in some stories, he realizes how much she sacrificed for him and it makes him even more determined to protect the village she loved.
Typically, it's portrayed as a very deep and affectionate mother - son love. Kushina's love for Naruto is shown as selfless and all - encompassing, even from beyond the grave. Naruto, in turn, has a great admiration and love for his mother that he didn't get to experience fully while she was alive. In some fanfics, this love is also shown through their shared Uzumaki heritage, with Naruto feeling a special connection to his mother because of it.
Another idea is a time - travel fanfic. Naruto travels back in time and meets Kushina when she was young. He tries to help her without revealing his true identity. In the process, Kushina starts to feel a strange connection to this mysterious boy and they form a special relationship based on mutual care and an unspoken bond.
The romance in fanfiction between Naruto and Kushina is often about filling in the gaps of what could have been. Since Kushina died when Naruto was born, in fanfiction, they can have a relationship that they were denied in the original story. It might involve Kushina seeing Naruto grow up, falling in love with his determination and big heart. And Naruto, in turn, could discover a different side of his mother, one that is more than just the strong - willed Jinchuriki he always heard about.
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.
A really interesting one is 'Naruto's Reunion with Kushina'. It starts with Naruto accidentally traveling back in time and meeting a young Kushina. The story then follows how their relationship develops. It's full of sweet moments as Naruto, with his knowledge of the future, tries to protect Kushina and in the process, they form a deep connection.
It could develop in a complex way. Maybe at first, Kushina is shocked by Naruto's dark transformation. But as a mother, she tries to understand him. She might start by reaching out to him, trying to find the root of his darkness.
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.
Another idea for a fanfiction could revolve around a mission. Naruto, Kushina, and Mikoto are sent on a dangerous mission to retrieve a powerful artifact. Along the way, they face various challenges that test their teamwork. Kushina uses her strong will and Uzumaki chakra to break through barriers, Mikoto uses her Sharingan to detect hidden enemies, and Naruto uses his Rasengan and his never - give - up attitude to keep them going.