How would an OC's personality be affected if reincarnated in DxD fanfiction?

Well, if an OC (Original Character) was reincarnated in a DxD (High School DxD) fanfiction, they might bring in new and unique abilities. They could potentially change the power dynamics in the DxD world. For example, if the OC has some special magic or combat skills from their previous life, it could make them a formidable force in the battles against the devils, angels, and fallen angels in the DxD universe.

The OC's personality could also develop a sense of responsibility. Since the Goro Goro no Mi powers are so strong, they might feel a duty to use them for good. They could start to look out for the weak and oppressed in the world. For example, they might use their powers to protect a group of refugees from a corrupt government or a band of marauding pirates. They would understand that with great power comes great responsibility and strive to be a positive force in the world.

The Goro Goro no Mi could make the OC's personality more electric, in a sense. They might be more energetic and vibrant, always on the go. Since electricity can be both a destructive and a life - giving force, they could have a complex personality. They might be kind - hearted but also have a fierce side when it comes to protecting the weak. They could also be a bit of a show - off, using their powers to impress others. For example, they might create lightning shows in the sky just for fun or to gain attention.

Naruto's personality might become more calm and centered. Yoda could teach him to control his impulsiveness. So instead of rushing into things, he'd think more before acting.

The OC would first need to understand Lucifer's powers. They might have to learn how to control the demonic energy that comes with being Lucifer. It could be a struggle at first, like learning to walk again. For example, Lucifer has the power of manipulation and the OC would need to figure out how to use it without causing chaos right away.

The OC might be more assertive than Bella. Bella was often very passive in the original story, especially when it came to her relationships. The OC could be the type to take charge and make decisions more quickly, not waiting for others to lead the way.

Naruto's personality might still shine through even as an Arrancar. He's always been determined and kind - hearted. However, he could become a bit more solitary at first as he adjusts to his new form and powers. The Arrancar nature might make him more cautious in some ways, but his basic values of friendship and protecting the weak would remain. He might also develop a bit of an edge, as Arrancars are often seen as more menacing, but it would be a surface change. Deep down, he'd still be the Naruto who wants to bring peace and joy to his village.

He could become more protective. Since Kiva's powers are powerful, Naruto might feel a greater sense of responsibility to protect his village and friends. He might also be more secretive about his new powers, at least until he fully understands them. And his sense of humor might change a bit, becoming a bit darker or more sarcastic as he gets used to his new identity as someone with Kiva - like abilities.

He might become more confident. Having a powerful dragon quirk could make Izuku realize his own strength, and he'd carry himself with more assurance. For example, he wouldn't be as shy when speaking up in class or to other heroes.

His core Naruto - like personality of being determined and never - giving - up would still be there. But he might become more refined and elegant like the elves. He would probably have more patience due to the elven influence. His boisterousness might be toned down a bit, but he would still be the energetic Naruto at heart, just with a more elven - like exterior in terms of behavior.