There might be a rival character who is extremely interesting. This character could have a different approach to the way of the sword compared to the protagonist. They might be more ruthless or have a different set of values, which creates great conflict in the story. Also, there could be a sidekick type of character who is always there to support the protagonist, but also has their own growth arc as they are exposed to the way of the sword.
One of the main themes could be self - discovery. The characters in the novel might embark on a journey of the way of the sword, which forces them to look deep within themselves to understand their true potential and purpose. Another theme could be loyalty, perhaps loyalty to a particular swordsmanship style or to a master or comrades within the context of the sword - related world.
The main protagonist is often very interesting. They usually have a unique backstory related to their connection with the sword. Maybe they found a magical sword that changed their destiny. Another interesting character could be the sword master. They have great knowledge about swords and can teach the protagonist important skills.
It could be the protagonist. Usually, the protagonist has the most complex journey, and their actions and decisions play a big role in how things end. Maybe there's also a mysterious side character who adds an element of intrigue to the story.
The sword itself is very interesting as it has the mind of a human reincarnated. And the cat - girl is also a great character. She has her own backstory and personality that makes her really stand out.
Fran is one of the most interesting characters without a doubt. Her naivete combined with her fierce determination makes her stand out. The blacksmith in the story is also quite interesting. He helps the sword upgrade and his interactions with Fran and the sword are full of character.
Kirito remains interesting. He has to adapt to a new gaming environment in Sword Art Online 2 novel. His growth and how he uses his skills in different situations keep the readers engaged. Also, the new characters he interacts with add more depth to his character. Another interesting character is Death Gun. His mysterious nature and the threat he poses in the game create a lot of suspense.
Merlin is very interesting. He is a powerful wizard with a great sense of humor. He uses his magic not just for show but to teach Arthur important life lessons. Another interesting character is Archimedes, the owl. He is wise and often provides comical commentary on the events. Arthur himself is also a fascinating character as he has to overcome his own insecurities and doubts on his way to fulfilling his destiny.
Well, Fran is really interesting. She starts off as a weak character but with the help of the sword, she grows stronger. Her naivete and determination make her stand out. The sword itself is also fascinating. It has its own thoughts and emotions, which is quite unique for a weapon. And the Demon Lord is an interesting character too, with his great power and the threat he poses to the world.
Richard Cypher is really interesting. He starts as a simple woods guide and becomes a powerful figure.
The protagonist sword is definitely one of the most interesting characters. It has a unique perspective as a reincarnated object. Fran, the girl who wields the sword, is also very interesting. Her relationship with the sword and her growth as a character are engaging.