One possibility could be a story where Naruto, with his unique abilities from his own world, enters the High School DxD universe and meets Kuroka. In this harem fanfiction, Naruto's kind heart and strong power might attract Kuroka and other characters. They could go on adventures together, with Naruto's ninja skills being a novelty in the DxD world. And his determination to protect could make him a central figure in the harem.
Well, Naruto has a big heart and is always ready to help others. In the context of a High School DxD harem with Kuroka, he could use his knowledge of ninjutsu to teach the others some new combat techniques. His ability to make friends easily would also play a role. Kuroka, being a cat - like character, might be intrigued by Naruto's different species and his unique chakra. Naruto could also adapt to the different social norms of the DxD world and become an important part of the harem.
Well, it could be about Naruto somehow being transported to the world of High School DxD. In this fanfic, he might end up in a situation where he attracts a large number of characters from both universes, forming a mass harem. Maybe his ninja skills and unique personality would be the reasons for all the attention. For example, his determination and ability to protect others could make him appealing to the female characters in High School DxD.
In a Naruto and High School DxD fanfiction, there could be a scenario where the protagonists of both stories meet in a neutral dimension. Issei from High School DxD might be intrigued by Naruto's ninja skills and determination. Naruto, in turn, could be curious about Issei's Sacred Gear. They could start training together, sharing their knowledge and skills, and ultimately have to face a common enemy that threatens both their worlds.
In a harem fanfic, the characters can interact through a cultural exchange of sorts. Naruto could introduce the concept of ninja clans and honor to the High School DxD characters. The female DxD characters might find this new concept fascinating and be attracted to Naruto because of it. Also, they could interact in a rescue mission. If one of the DxD characters or Naruto gets captured, the others come to the rescue. During this process, the female DxD characters would see Naruto's loyalty and courage, which would make them more interested in him as part of the harem. And of course, there could be parties or social events where they all mingle. Naruto's outgoing and friendly nature would make him popular among the female DxD characters, leading to more interactions and the development of the harem.
One plot idea could be that Naruto, with his ninja skills, gets transferred to the High School DxD world. He might accidentally join the Occult Research Club and use his Rasengan to defend the club from various threats. His positive attitude and never - give - up spirit could inspire the DxD characters and also attract the girls in the harem, leading to some comical and action - packed situations.
One plot idea could be the characters from Naruto finding themselves in the world of High School DxD and having to adapt to the different rules and powers there. They might form alliances with the characters from DxD to face a common enemy.
Sure. Check out some of the top - rated fanfictions in the crossover category. Sometimes, the rating system helps filter out those with inappropriate content. Look for ones that have high reviews based on the story's creativity, how well the characters are written, and the overall plot. This way, you can find some great 'Naruto and High School DxD Harem' fanfictions that are suitable for all audiences.
One way could be through the power system. The EMS (Eternal Mangekyou Sharingan) from Naruto could be a unique power that a character in the High School DxD world acquires. Maybe a transfer student from a hidden ninja village arrives at the high school and has to keep their EMS a secret while dealing with the devils and angels in the school. This could lead to some interesting battles and interactions as the powers of the EMS, like the ability to use powerful jutsus, contrast with the magic and abilities of the High School DxD characters.
One possible fanfiction could be about Naruto characters attending the school in High School DxD. For example, Naruto's positive and determined attitude might clash with the more complex social and power dynamics in the DxD world. He could make new friends or even rivals among the devils, angels, and fallen angels.