At first, they might be a bit cautious around each other. But as they face challenges together, such as dealing with rogue shinobi who don't want peace, their relationship deepens. Naruto's positive attitude rubs off on Mei, and Mei's practical thinking helps Naruto. They could end up being very close allies, with a bond that is based on trust and shared goals of maintaining peace in the shinobi world.
One possible plot could be that Naruto and Mei work together to rebuild the villages. Naruto, with his experience and leadership, helps Mei in restructuring Kirigakure. They might face challenges like distrust among villagers due to past hostilities, but Naruto's charm and Mei's determination help them overcome. For example, they could organize joint training sessions between Konoha and Kirigakure shinobi to promote unity.
One possible reason could be to protect his family. After the war, Naruto might have made many enemies. By faking his death, he could draw the attention of these enemies away from his family, especially his wife and children. His enemies would think he's no longer a threat and stop targeting his loved ones.
In some fanfictions, Naruto becomes more jaded after the war. He has seen so much death and destruction that he loses some of his initial idealism. He might be more cautious in his actions and less quick to trust.
In some fanfictions, Naruto and Hinata start a family right away. They enjoy a peaceful life in Konoha, with Naruto being a great Hokage and Hinata supporting him at home and also taking part in some village activities.
One common theme is rebuilding. After the war, the villages, especially Konoha, need to be rebuilt both physically and socially. Another theme is reconciliation, like Sasuke coming back to Konoha and being accepted again. Healing is also a theme, as the characters have to deal with the mental and physical scars of the war.
He could meet an old enemy who has also changed after the war. This enemy might now be in a similar situation of being alone and they could form an unexpected bond as they understand each other's isolation.
Naruto could encounter wandering ninjas who have their own stories and reasons for not being part of a village. Some might be outcasts due to their beliefs or powers, and Naruto's interaction with them could lead to either conflict or new friendships. He may also come across some of the shinobi who fought on the opposite side during the war but now have different outlooks on life. Through these meetings, Naruto gets a broader perspective on the ninja world.
Naruto might become more empathetic towards Ino. After the war, he's seen so much pain and loss, and he could start to understand Ino's own struggles better. He may become more protective of her, seeing her as an important part of the village he fought so hard to save.
Naruto might initially be shocked and feel betrayed. But he would soon gather his strength. He could use his skills to survive in the wild or in a new land. He would probably keep training to get even stronger.