The monster girl herself would surely be a main character. She could be a complex being, with the physical traits of a monster but the emotions and intelligence of a human. Maybe she has the body of a manticore but the heart of a kind - hearted girl. Another possible main character could be a detective or a journalist who discovers the existence of the monster girl and tries to uncover the truth behind her creation.
The main character could be the bioengineer who creates the monster girl. They might be a brilliant but morally ambiguous scientist, driven by the thirst for knowledge and the desire to push the boundaries of science.
One main character could be the mentor of the bioengineer. This person might have inspired the young scientist to start the bioengineering project in the first place. They could be an old, experienced scientist who has some dark secrets of their own. The monster girl, of course, is a central character. She is the result of the bioengineering experiment. And there could also be a resistance group that wants to stop the bioengineering experiments. Their leader could be another important character in the story.
In a 'bioengineering a monster girl story', the plot could be centered around a group of scientists working on a secret bioengineering project. By accident, they create a monster girl with unique abilities. She escapes from the lab and goes on a journey to discover where she came from. Along the way, she meets various characters who either help or try to capture her.
It depends on various factors. On one hand, if the bioengineering is for non - harmful purposes like creating a unique being for study or to help in some ecological balance in a fictional world, it could be seen as ethical. However, if it involves causing pain or using the monster girl as a mere experiment without proper regard for her well - being, it's unethical.
One key element is the character of the monster girl herself. Describe her physical features, which are often a blend of monstrous and feminine traits. For example, she might have horns and a tail but also a very human - like face. Another element is the scientific or magical process of bioengineering. Explain how it works, whether it's through gene splicing or some arcane magic.
I'm not sure exactly who the main characters are in 'Monster Girl Story' without more information. But it's likely to have a human character as a protagonist who serves as the link between the human world and the world of monster girls.
Obviously, the hellhound monster girl herself is a main character. There might also be a sidekick or a friend who helps her through her adventures. Maybe a wizard or a brave knight who doesn't judge her for what she is.
The hellhound monster girl is the central figure, no doubt. But in addition to her, there could be a whole cast of characters. There may be a human character who initially fears her but then comes to understand and support her. There could be an ancient demon or spirit that has some connection to her origin or powers. And then there are the potential sidekick characters, maybe some smaller or less powerful monsters that follow her around, either out of loyalty or because they see her as a means to protect themselves in a dangerous world.
The main character is a male protagonist. And of course, there are various monster girls which can be considered as main characters in their own right as they play significant roles in the story.
Most likely the monster girls themselves are the main characters. Each with their own distinct features and personalities.
As not much is known about it, it's difficult to say. But it's likely the monster girl would be one of the main characters. There could also be other characters like local villagers or creatures from the alp area.
The girl and the alp - monster are likely the main characters. The girl could be a normal human girl from a village or a town in a fictional setting. She might be curious, brave or both. The alp - monster, on the other hand, could have its own motives and personality. It could be a mischievous alp, always playing tricks, or a more menacing one. And depending on how the story is crafted, there could be other characters that interact with them, such as a wise old hermit who gives the girl advice on dealing with the alp - monster, or a group of hunters who are after the alp - monster for some reason.