Perhaps a plotline where Grayfia is sent on a mission to the Naruto world. There, she meets Naruto and his friends. Naruto is intrigued by her different powers and appearance. They start to exchange knowledge about their respective worlds. This could lead to them collaborating on a project to bridge the two worlds in some way, like creating a peaceful exchange of cultures and techniques, without any romantic or sexual undertones.
One possible plotline could be a story where Naruto is transported to the world of High School DxD where Grayfia exists. They meet and initially have a misunderstanding due to their different backgrounds, but then gradually come to understand each other and work together to solve a mystery in that world.
A plotline might involve Ryuuzetsu and Naruto forming an unlikely alliance to fight against a common enemy. Maybe there's a new threat that neither the Leaf Village nor the Hidden Mist Village can handle alone. They would have to combine their skills and learn to trust each other. Ryuuzetsu could teach Naruto some of the Hidden Mist's combat strategies, and Naruto could share his never - give - up attitude with Ryuuzetsu.
One possible plotline could be a tournament - style event where characters from Naruto and My Hero Academia compete against each other. This would allow for exciting battles as the different powers and abilities are pitted against one another. For example, Naruto's shadow clone jutsu against Bakugo's explosions.
One plotline could be them training together. Naruto, with his unique skills and experience, could help Hanabi improve her own abilities. They could exchange techniques and learn from each other. For example, Naruto might show Hanabi how to better control her chakra, while Hanabi could teach Naruto some precision - based moves that are common in the Hyuga clan.
One possible plotline could be them working together on a complex mission. Shikamaru's strategic mind and Hinata's Byakugan abilities would make them a great team. They could face various challenges during the mission and in the process, their respect for each other grows, leading to a deeper friendship.
Perhaps in a 'naruto x tifa lemon fanfiction', Tifa could be transported to the Naruto world. She might initially struggle to adapt to the ninja - based society. Naruto, being the friendly and helpful character he is, would assist her. As they spend time together, they start to understand each other's strengths and weaknesses, which could lead to a deeper connection. However, they also have to deal with the politics and power struggles in the Naruto world that might threaten their relationship.
Perhaps in a 'naruto x tsunami lemon fanfiction', Tsunami could be a healer who tends to Naruto's wounds after a tough battle. As she takes care of him, they start to develop feelings for each other. The 'lemon' part might come in when they finally express their deep - seated desires for one another in a more intimate way. However, it's important to note that this is just speculation as such fanfictions can vary widely.
One possible plotline could be that Black Widow somehow gets transported to the Naruto universe. She could use her combat skills and spy training to help the ninja in Naruto's world with a particular mission, like dealing with a new and dangerous enemy that has techniques similar to those in the Marvel world. For example, an enemy that can control minds like some villains in the Marvel universe.
Perhaps a plot where Naruto and Aayla Secura are both summoned by a powerful being to participate in a tournament of champions from different universes. They start as strangers but gradually develop respect for each other as they face tough opponents. Along the way, Naruto might learn some of Aayla's more refined combat techniques, and she could be inspired by Naruto's never - give - up attitude. Their relationship could grow from mere competitors to friends, and they could even work together to uncover the true motives of the being who summoned them.
One possible plotline could be a team - up. Naruto and Shaak Ti could join forces to fight a common enemy. Maybe an ancient evil that threatens both the Naruto universe and the Star Wars galaxy where Shaak Ti is from. They would have to learn to combine their unique skills, like Naruto's Rasengan and Shaak Ti's lightsaber combat and Force abilities.
Perhaps Aphrodite sees Naruto as a symbol of hope in his world. She decides to bring him to the world of Greek mythology to show her fellow gods and goddesses what true heroism is. Along the way, Naruto learns about Greek culture and mythology, and together with Aphrodite, they embark on a journey to stop a great evil that threatens both the Naruto world and the Greek mythological world. This would be a plotline full of adventure, friendship, and cultural exchange, without any adult themes.