One interesting interaction could be between a Sharingan - user and a devil from Highschool DxD. The devil might be initially intrigued by the strange power of the Sharingan, not understanding how it works. The Sharingan - user, on the other hand, might be cautious of the devil's powers. For example, they could be sizing each other up in a tense first encounter, trying to figure out the other's weaknesses.
Think about a scenario where a Sharingan - powered character teams up with a group of Highschool DxD characters. The Sharingan - user might bring in their ninja skills and strategic thinking. They could teach the Highschool DxD characters about stealth and how to analyze an opponent's moves. In return, the Highschool DxD characters could introduce the Sharingan - user to their world's magic and unique social hierarchies. This exchange of knowledge and skills could lead to some really fun and dynamic character relationships in the fanfiction.
In a Sharingan Naruto Highschool DxD fanfiction, the Sharingan could also play a role in terms of illusions. Imagine a scenario where the character uses Sharingan - based illusions to deceive the enemies from both worlds. They could make a Highschool DxD devil believe they are in a completely different environment like a dangerous Naruto - style forest filled with traps. And for Naruto characters, they could be made to see illusions of their worst nightmares or false threats from the Highschool DxD world, which would make for some really intense and engaging storylines.
One plot idea could be a character from Naruto ending up in the Highschool DxD world and having the Rinne Sharingan. They could use its powers in the battles against the devils and fallen angels in the new world.
Another interesting interaction could be between Naruto and Akeno. Akeno is known for her mischievous nature. When she meets Naruto, she would be curious about his ninja skills. Maybe she would try to play some pranks on him using her magic, but Naruto, with his quick reflexes and shadow clone jutsu, would be able to turn the tables on her. This would lead to a really fun and dynamic relationship between the two characters.
Well, for a Sharingan OC in Highschool DxD fanfiction, start with their appearance. They could have long black hair and a red and black outfit to match the Sharingan theme. Then, consider their relationships. They might befriend Issei and help him with his battles. Their Sharingan abilities could include things like predicting enemy moves accurately. Also, don't forget to give them some flaws. Maybe their Sharingan drains them of energy quickly, which adds an interesting dynamic to their character.
The interactions between Naruto and Akeno would be quite fascinating. Akeno has her own allure and power. Naruto, being godlike, would be an enigma to her. She might be intrigued by his powers and his different way of looking at things. They could have some deep conversations about power, morality, and the differences between their two worlds while also having some light - hearted moments due to Naruto's sometimes clueless nature about the more flirty aspects of Akeno's personality.
Definitely Naruto and Issei. Issei is all about his perverted ways and getting stronger, while Naruto is focused on protecting his friends and achieving his dreams. Their clash of personalities would be really interesting. Naruto might not understand Issei's obsession with girls at first and try to set him straight. And Issei would be amazed by Naruto's power and want to learn from him.
There could be some really interesting interactions. For instance, Naruto might form an unlikely friendship with Issei. Issei is always looking to become stronger and Naruto, with his vast experience and power, could be a great mentor to him. Or he could have a rivalry with some of the more prideful devils or angels who see his Kitsune powers as a threat. Naruto's friendly and outgoing nature could also lead him to befriend some of the female characters, which might cause some jealousy among the male characters in the Highschool DxD world.
There could be some really interesting interactions. Naruto might befriend Issei, and they could exchange training techniques. Naruto's rasengan could be a very unique move for Issei to learn about. Kunou could interact with Rias, perhaps having a bit of a rivalry at first due to their different leadership styles. Kunou is more reserved in her kitsune ways while Rias is bold as a devil leader.
Naruto and Ravel might start off as strangers. Naruto would be the curious outsider, and Ravel would be intrigued by his different appearance and powers. Then, Naruto could interact with other DxD characters. For example, he might have some friendly competitions with Issei. As the harem forms, Naruto would have to balance his relationships with different girls. He might have deep conversations with Ravel about their different worlds and values.
One way could be through a crossover character. Imagine a character from Naruto's world ending up in the Highschool DxD universe with their Sharingan. They could use it in battles against the devils and fallen angels in the Highschool DxD world. For example, the Sharingan's ability to predict movements would give them an edge in combat.