Redemption can be a theme. Maybe the hero made some big mistakes in their past life and now in their rebirth, they try to atone for those sins. Also, exploration of the martial world is a common theme. They want to discover new martial techniques, secret realms, and understand the deeper mysteries of the martial world that they didn't in their past life.
Power - seeking is also quite prevalent. The reborn martial hero wants to reach the top of the martial world this time around. They use their knowledge from the previous life to gain power more quickly. And family and friendship are important themes too. Sometimes they want to protect their loved ones better this time or make up for past mistakes in relationships.
Another theme is self - improvement. The hero starts from a relatively weak state and through continuous training and experiencing various adventures, he grows stronger in martial arts. It's about the journey of becoming a top - notch martial hero. In 'Martial World', the main character constantly challenges himself to break through his limits.
Love is a common theme. For example, in 'Twilight', the love between Edward and Bella is a central part of the story. Another theme is the struggle between good and evil, like in 'The Mortal Instruments' where the heroes fight against the forces of darkness. Also, self - discovery is often there as the heroes usually learn more about their own powers and identities in the paranormal world.
One common theme is the power struggle. The hero usually starts with less power compared to the boss, but through a series of challenges, they grow in strength. For example, in 'The Matrix', Neo is the hero and the machines are the bosses. Neo has to overcome the powerful control of the machines.
Often, self - discovery is a theme. In 'The Adventures of Huckleberry Finn', Huck goes on a journey that helps him discover who he really is. Individualism is another common theme. American heroes in novels tend to be individuals who go against the norm or fight for their own beliefs. And of course, there's the theme of survival, like in 'The Call of the Wild' where Buck has to survive in the wild.
A common theme is heroism. The Spear Hero is usually on a journey to prove himself and save the day. Another theme is often the power of the spear as a weapon, and how it can be used for good or evil depending on the wielder.
One common theme is heroism itself. The heroes in these novels often display courage, like in 'The Lord of the Rings' where Aragorn shows great courage in battle. Another theme is the journey or quest. For example, in 'The Odyssey', Odysseus' journey home is full of trials.
Empowerment is a common theme. Girls in these novels often start in a position of relative weakness or being underestimated but then rise to power. For example, in 'Matilda', Matilda is a little girl in a world that doesn't understand her intelligence at first. But she uses her powers (both mental and new - found confidence) to overcome obstacles like her mean parents and the cruel headmistress.
A sense of isolation can be a theme too. Even though they might be surrounded by people in the new world, the resummoned hero may feel alone because they are different. Their knowledge from their previous world may not be fully understood by the natives of the new world. They often have to find their place in this new society while still holding onto a part of who they were in their original world.
Well, 'A Record of Mortal's Cultivation to Immortality' can be considered in a way. Although it's more about cultivation to immortality, the protagonist has a kind of rebirth - like start. He starts from a weak position and gradually becomes a powerful figure in the martial and cultivation world. The world - building in this novel is extremely detailed, which makes it stand out.
One popular 'Martial Hero Rebirth' light novel could be 'Martial World'. It has a great story of the protagonist's journey in the martial arts world, filled with intense battles and character growth. Another might be 'A Record of Mortal's Cultivation to Immortality' which also has elements of martial hero's rebirth in a sense, with the main character constantly facing challenges and evolving in the world of cultivation.