One way is to give it a distinct language. A language that has its own grammar, vocabulary, and writing system. This can add depth to the civilization. For instance, you could base it on an existing language and modify it. Then, think about their technological level. If they were advanced in some areas but lacking in others. Maybe they had great knowledge of astronomy but still used primitive tools for farming. Another important aspect is the people. What did they look like? Did they have any unique physical characteristics? And how did they interact with each other? Were they a war - like people or more peaceful? By carefully considering all these things, you can create a more believable lost human civilization in your fanfiction.
First, do research on the animals you plan to include. Understand their behavior, habitat, and social structure. For instance, if you have a human interacting with lions, know that lions live in prides with a dominant male and female, and they hunt in groups. Then, give your human character traits that would realistically interact with these animal traits. If the human is kind - hearted, they might try to protect the lion cubs from danger.
First, you need to consider the physical characteristics. Maybe the hybrid has Digimon - like eyes or ears that are a bit different from normal humans. Second, think about their abilities. They should have a mix of human skills and Digimon powers. For example, if the Digimon part is strong, the hybrid might be able to lift heavy objects like a Digimon but also use human - like strategy. Third, give them a backstory that explains how they became a hybrid, like a scientific experiment gone wrong or a magical encounter in the digital world.
For the snakemen, think about how their physical form might influence their character. For example, if they have a slithering movement, they might be more patient or stealthy. Humans can have a wide range of personalities based on their background and experiences. In the fanfiction, make sure the characters' actions are consistent with their personalities. For instance, a snakeman who is proud of his species' heritage may act in ways to protect and promote it. And a human who is a scientist may be curious and always exploring.
One way is to base their personalities on real - life human and animal characteristics. Since digimon often have animal - like features and behaviors, you can blend those with human traits. For instance, a digimon human hybrid with a wolf - type digimon heritage could be very protective like a wolf, but also have the insecurities that a human might face in social situations. Make sure their actions are consistent with their character traits. If they're a shy hybrid, they wouldn't suddenly become overly confident without a good reason in the story.
Give them distinct personalities. For example, a human character could be brave like a warrior cat but also have the inquisitiveness typical of a human.
For believable characters in alien and human romance fanfiction, start with the alien. Develop its backstory. If it's from a highly advanced society, it might be very intelligent but also a bit arrogant at first. The human should have their own flaws and strengths. Maybe the human is a bit of a loner, which is why they are more open to an alien relationship. Also, think about how they communicate. If the alien has a different language, how do they bridge that gap? Their relationship should develop gradually as they learn more about each other.
First, you need to study the existing lore of Warhammer 40k. Understand the overall universe, the technology, the races, and the general feel of it. Then, for your alt human faction, think about their origin. Were they a lost colony? A result of some experiment? Next, define their culture. What do they value? What are their taboos? Also, consider their military capabilities. What kind of weapons and armor do they use? Don't make them too overpowered or too weak compared to the existing factions.
To create believable character development for Megatron, consider his past. Maybe he had some experiences with humans in the past that were either positive or negative but were buried deep. In the fanfiction, these memories could resurface due to an encounter with a particular human. As he interacts more with this human, his views on the entire human race could start to shift. For instance, if he once had a human friend as a young Transformer but lost them in a war, meeting someone similar could reignite those old feelings and make him more empathetic towards humans.
First, think about their backstory. For example, if they are a human, what was their life like before getting involved in the 'Highschool DxD' world? Maybe they had a difficult childhood which shaped their personality. Second, give them a unique skill or trait that makes them stand out but is still believable within the context of the series. It could be something like being an expert in martial arts which helps them in combat situations.
To create a believable OC in fanfiction, start with a clear backstory. For instance, if it's a medieval - themed fanfic, give your OC a family history that fits the era, like they come from a long line of knights or peasants. Then, give them realistic flaws. Don't make them perfect. Maybe your OC is really good at magic but is terribly shy in social situations. Also, consider their motivation. What drives them? If it's a Hunger Games fanfic, your OC might be motivated by protecting their younger sibling.