Kushina would first be in shock seeing Naruto sick. But then she'd quickly compose herself and start taking action. She'd probably try to find the best medical ninja in the village to treat Naruto. And while waiting for the treatment to work, she'd stay by his side, talking to him gently, telling him how strong he is and that he'll get through this illness easily.
Kushina would be extremely worried. She would rush to Naruto's side immediately and start using her medical knowledge or any available resources to help him get better.
Naruto might be extremely heartbroken. He has always looked up to his mother, and being disowned by her would be a huge blow. He could become withdrawn and start to question his own worth.
As he grows up, Naruto could become very angry. He might develop a sense of abandonment and this could fuel his determination to become stronger. He would want to prove himself to his mother, wherever she is. In this fanfiction, his anger could be a driving force in his character development.
Well, Kushina could initially be disappointed. But then she might see it as an opportunity to help Naruto find his true passion. She could start introducing him to different things, like maybe some traditional Uzumaki family skills that don't necessarily involve being a ninja in the typical sense. This way, Naruto could still have a sense of purpose and connection to his heritage.
Naruto would be heartbroken. He might initially be in denial, not believing that his mother could forget him. Then he would probably get angry, vowing to find out who or what caused this and make them pay. After that, he'd turn his anger into determination and start looking for solutions to bring back her memories.
Naruto might initially be in shock. He has always counted on Kushina's love, and this sudden abandonment would be a huge blow. He could become withdrawn and quiet, not understanding why his mother would do such a thing.
At first, Naruto might be extremely confused. He has always considered the village his home and Kushina as someone important. So being banished by her would leave him feeling lost and not understanding why it happened.
In some cases, Naruto might initially become bitter towards his parents. But as he experiences more in life and learns about the possible reasons behind their actions, he could come to understand and even forgive them. His reaction would also depend on the people around him. If he has good friends or mentors, they could help him deal with his emotions in a more positive way.
Kushina's training in the fanfiction might also impact Naruto's mental state. Knowing that his mother is there to train him gives him more confidence. He feels more connected to his family and his Uzumaki heritage. This new - found confidence reflects in his battles, where he is more fearless and decisive.
The comfort from Kushina in the fanfiction might also inspire Naruto to be a better person. He might strive to live up to the values his mother represents, like kindness and perseverance. Her presence in his life, even if just in the fanfiction, can be a guiding force for him, making him more determined to protect those he loves and make the world a better place.
In certain fanfic concepts, Naruto could have found a special relic or artifact. This relic might have the power to reverse death. Since Naruto is always on adventures and exploring different places, he might stumble upon such an item and use it to revive Kushina. It could also be related to the Uzumaki clan's secrets that he uncovers which enables him to bring his mother back.