In a fanfiction plot, perhaps a time - travel element is introduced. Naruto travels back in time and meets Rin. He helps her avoid her tragic fate. As they spend more time together, they realize they have strong feelings for each other and get married. Their marriage then becomes a catalyst for changing the future of the ninja world for the better as they combine their knowledge and powers.
One possible plot could be that Rin is brought back to life through some powerful jutsu. Naruto, who has always been intrigued by stories of her, meets her and they slowly fall in love. They get married and then have to deal with the shock of the ninja world as it's an unexpected union.
One possible plot could be that Rin and Kakashi are married and they play a role in Naruto's growth. Maybe they pass on some of their skills and wisdom to Naruto. For example, Kakashi could train Naruto in new jutsus, and Rin could help with medical ninjutsu training.
The plot could revolve around their adventures together as a married couple. Maybe they discover a new magical threat and have to use their combined powers and skills, with Shirou's swordsmanship and Rin's magic, to protect their world. They also might start a family and raise a child with magical abilities, passing on their knowledge and values.
One possible plot could be that Naruto somehow travels back in time and meets Rin. He might try to prevent her tragic death. Since Naruto is known for his determination and never - give - up attitude, he could use his skills and knowledge to change the events that lead to her death.
One possible plot could be that Naruto is in a dangerous battle against a powerful enemy. Rin, using her medical ninjutsu skills, manages to break through the chaos of the fight and reach Naruto just in time. She heals his critical wounds and then uses her strategic mind to help him find a way to defeat the enemy.
Well, one possibility is that Rin would instill in Naruto her own values from the Hidden Leaf. Maybe she'd focus on teaching him about teamwork early on. Since she was a medic - nin, she could also start training Naruto in some basic medical ninjutsu, which would be a unique addition to his skills.
In this fanfiction, perhaps the story could focus on how Kakashi and Rin's adoption of Naruto changes the relationships in the village. Naruto might not be as ostracized as he was in the original story. Also, they could help Naruto deal with the Nine - Tails inside him in a more gentle and effective way compared to what happened in the canon story.
A possible plot could be them having to protect their family from an unknown threat. Since both are powerful shinobi, they would use their skills to safeguard their loved ones. They might also face internal struggles, like Naruto's loyalty to Konoha conflicting with Yugito's ties to her own village.
One possible plot could be that they have to face challenges together in a post - war Konoha. They might work on rebuilding the village while also dealing with their new family life. Naruto, with his experience and Kushina's strong will, could make a great team in leading the village in a new direction.
One possible plot could be that Naruto, with his strong ninja skills, and Mavis, with her magical knowledge, team up to protect their world from a new, powerful threat. Their marriage brings together the ninja and magical worlds in a unique alliance.
In a 'Naruto Koyuki married' fanfiction, the plot could start with Koyuki being in danger and Naruto saving her. This leads to a deepening of their relationship and they decide to get married. After marriage, they work together to improve the lives of the people in Koyuki's country. Naruto teaches the people some ninja techniques for self - defense, and they also have to deal with threats from other ninja clans who are jealous of their power and influence as a married couple.