Give your OC Devil a distinct personality trait. For example, if they are extremely curious, it can lead to all kinds of interesting situations. Also, a unique appearance helps, like having purple - tinted horns or a tail with a special pattern.
First, consider their relationships. An OC Devil who has a complex relationship with a well - known character from Highschool DxD can be very memorable. For instance, if they have a love - hate relationship with Rias. Their goals are also important. If their goal is to find a way to break an ancient Devil curse that affects their family, it gives them depth. And don't forget about their flaws. A Devil who is overly proud and that often gets them into trouble can be a very interesting character to write about.
The OC's backstory as a gamer is crucial. Maybe they were a bullied gamer in the human world but in the Highschool DxD world, they find a new sense of purpose and power. Their journey from being an underdog gamer to a powerful figure in the DxD world can be very memorable. Also, give them some quirks like always quoting game lines at inappropriate times which adds humor and memorability.
First, focus on their appearance. Give them distinct features like unique horn shapes or a special color for their eyes or wings. For example, your OC demon could have purple - flaming wings that make them stand out. Second, develop their personality. Maybe they're really sarcastic and use that to their advantage in conversations. Third, think about their powers. It should be something that fits within the Highschool DxD universe but also is different enough to be interesting, like the power to create illusions based on people's deepest fears.
First, give your Neko OC a distinct personality. For example, she could be really shy but have a hidden feisty side that only comes out when she's protecting her friends. Second, give her unique physical features. Maybe she has heterochromatic eyes, one blue and one green, which is rare among Nekos. Also, a special ability like super speed or the power to heal others quickly can make her stand out. And don't forget to give her a backstory that ties into the Highschool DxD universe, like she was an experiment by a rogue devil scientist.
Give your character a distinct personality trait. For example, if your character is super powerful (OP), make them also extremely humble. This contrast can make them stand out. In Highschool Dxd, most powerful characters are either arrogant or have a strong sense of pride. A humble OP OC would be refreshing.
First, give the OC a unique appearance. It could be something like a distinct hairstyle or a special piece of clothing. For example, an exorcist OC with a long, braided ponytail that has a cross - shaped hairpin in it. Second, define their personality traits clearly. If they're an exorcist, they could be extremely dedicated but also have a sense of humor, like making jokes during battles to throw off their opponents.
You can make your female OC memorable by focusing on her goals. Let's say she's determined to bring peace between the three factions (devils, angels, and fallen angels). This gives her a big - picture goal that can drive the story forward. Her flaws are also crucial. If she's overly confident and it sometimes gets her into trouble, like getting into battles she's not fully prepared for, it makes her more relatable and human - like in a world of powerful beings.
Think about their backstory. A great backstory can make the OC stand out. For instance, if the devil was born from a special ritual that was supposed to be a sacrifice but instead created a powerful devil. Their past can influence their actions and motives in the fanfiction.
You can make your dragon OC very curious. Since dragons are often depicted as powerful and knowledgeable, a curious dragon would be interested in exploring new things in the 'Highschool DxD' world, like the different magic spells and the social hierarchies. This would lead it to interact with various characters and get into all sorts of situations.
Well, for a believable OC in Highschool Dxd fanfiction, think about the world they are entering. It's full of different species and power hierarchies. Your OC should have a reason for being there. Maybe they are drawn to the school because of a prophecy they heard about. Their personality should be complex. They can't be all - good or all - bad. And their abilities should be something that is both useful and has limitations. For instance, if they can fly, maybe it only works for a short time or under certain conditions. This makes them more relatable and believable in the context of the Highschool Dxd universe.