It could also have a theme of discovery and acceptance. The doctor might be constantly discovering new things about the monsters, their ailments, and their natures. And along with that, there could be a story of how the world around the doctor comes to accept these monsters, or at least the doctor's role in treating them. Maybe there are elements of prejudice that the doctor has to overcome, both within the human community and within the monster community itself.
Another theme might be about the world - building. Since it's about a 'Monster Doctor', the setting where the monsters exist and how they interact with the human - like doctor is likely to be an important aspect. There could be a unique ecosystem or society that involves both monsters and the doctor. And the doctor may have to navigate through different cultural or biological norms of the monsters.
One of the main themes is power dynamics. With monster lords being powerful entities, the novels often explore how they interact with each other and those with less power. Another theme could be loyalty, as the characters, whether they are monster lords or those associated with them, often have to decide who to be loyal to in different situations.
The 'Monster of Monsters' light novel mainly explores themes such as identity. The monsters have their own identities, and some struggle with how they are perceived by others. Another theme is the exploration of the unknown. The world of the novel is full of mystery, and the characters, especially the monsters, are constantly exploring new areas and uncovering secrets. Additionally, friendship and enmity between the monsters also play a significant role as themes, as these relationships drive a lot of the story's action.
Glenn is the central character in the Monster Girl Doctor light novel. He is the one with the medical knowledge and the compassion to treat monster girls. Alongside him, there are monster girl characters like the slime girl. The slime girl has her own unique characteristics and needs. And then there is the harpy girl who adds a different dynamic to the story. These characters together create a rich tapestry of relationships and events in the light novel.
Another theme is the struggle between life and death. Doctor characters are usually on the front line of this battle. They might have to make tough decisions, like in the novel 'Recovery of an MMO Junkie'. Although it's not strictly a 'doctor' light novel in the traditional sense, but the main character has to deal with her own 'health' in the virtual world which is also related to the concept of life and death.
Friendship is another important theme. The relationships that develop between the male protagonist and the various monster girls illustrate how different beings can form deep bonds, regardless of their differences.
One of the main themes is the relationship between humans (hunters) and monsters. It shows how hunters respect the power of the monsters while also having to hunt them for various reasons. Another theme is the exploration of the vast and diverse world, highlighting the different ecosystems and regions.
Another theme is exploration of different cultures. Each type of monster girl represents a different kind of culture or species - specific way of life. So, these novels often explore how they live, their traditions, and how they interact with other species. For example, some monster girls might have unique mating rituals or family structures that are explored in the story.
One common theme is self - discovery. For example, in 'That Time I Got Reincarnated as a Slime', the slime protagonist discovers his new abilities and place in the world. Another theme is power - building. In 'Overlord', the undead protagonist constantly expands his power and influence. Also, there's often the theme of dealing with prejudice, like in 'The Rising of the Shield Hero' where the protagonist is wrongly seen as a monster and has to overcome that perception.
A common theme is self - improvement. Since the characters are reborn as monsters, they often start from a weak state and have to constantly strive to become stronger. For example, they might learn new skills or evolve their forms.
Another common theme is the bond between the master and the monsters. It could be a friendship or a more complex relationship based on mutual benefit. For example, the master provides care and training, and the monsters offer their power and loyalty in return. Also, exploration of the monster world, including different habitats and cultures related to the monsters, is often seen in these light novels.