Most of these novels also focus on the growth of the protagonist. At first, they might face skepticism or opposition due to their unorthodox methods. But as they prove their military genius time and time again, they gain respect and power. And often, there is an overarching plot of the protagonist trying to achieve a grand goal, like unifying a divided land or protecting their new home from a powerful enemy. This makes for an exciting and engaging read.
Another characteristic is the setting in a fictional world, often with medieval - like warfare. In these novels, the reincarnated military genius has to deal with different kingdoms, political intrigues, and various military forces. There are usually detailed descriptions of battles, from troop formations to the use of different weapons. For instance, the protagonist might introduce new military tactics that are ahead of their time in that fictional world.
One popular 'military genius reincarnation light novel' is 'The Military Chronicles of a Genius in an Alternate World'. It has an interesting plot where the protagonist uses his military knowledge from his past life to navigate the challenges in a new world.
Typically, military light novels often feature detailed descriptions of military equipment, like weapons, vehicles, and military technology. For example, in 'Full Metal Panic!', there are in - depth explanations of mecha and their functions.
Military light novels often feature detailed military settings. For example, they might describe military ranks, equipment, and combat formations. They usually have a protagonist involved in military operations, either fighting on the front lines or in a strategic role.
Often, they feature characters who are reborn or reincarnated into a new world, usually a fantasy or alternate universe. This new world has its own set of rules, magic systems, and species.
Good reincarnation light novels often have an interesting premise. For example, the idea of starting a new life in a different world or with a different form, like in 'That Time I Got Reincarnated as a Slime'.
Typically, the main female character has memories of her past life. This gives her an advantage as she can use her previous knowledge in the new world. For example, in some novels, she might use her modern - day knowledge of science or technology in a medieval - like fantasy world.
The best reincarnation light novels often have unique settings. For example, they might be set in a high - fantasy world like 'That Time I Got Reincarnated as a Slime'. Here, the main character is reincarnated as a slime in a world full of magic and different races. This unique setting allows for a lot of creative storytelling.
They often have power - up elements. The protagonist usually gains new abilities or powers in the new world. In 'Overlord', Ainz has his powerful magic from his previous life as a gamer and also gains new abilities in the new world. Also, there's a sense of adventure. The characters go on quests, fight monsters, and interact with different races, just like in 'KonoSuba' where Kazuma and his party are constantly on some sort of adventure.
Often, they possess high intelligence. For example, they can quickly analyze complex situations and come up with solutions that others can't. In many light novels, they are also able to master skills or knowledge at an astonishing rate. Just like the main character in some novels who can learn magic or combat techniques way faster than normal characters.
These novels usually have a complex cosmology. There are different realms or planes of existence that are related to the reincarnation process. Souls might travel between these realms, and the nature of each realm affects the nature of the reincarnation. For instance, a soul might be purified or corrupted depending on the realm it passes through.