Kirito is one of the main characters. He plays a significant role in the events in the Underworld. Eugeo is also a main character, being Kirito's friend and ally in their adventures. Alice is another important character, especially with her connection to the Underworld and her own unique abilities.
Well, the discovery of new abilities and skills in the Underworld is a big plot point. The characters have to learn and master these to progress. And the relationships that form are crucial too. For example, the bonds between the main character and the inhabitants of the Underworld can change the course of the story. Plus, the mystery behind the creation and purpose of the Underworld drives a lot of the plot forward.
Some of the most important characters in the Sword Art Online War of Underworld Light Novel are Kirito, Asuna, and Alice. Kirito is important because of his long - standing role in the Sword Art Online series. He has unique combat skills and a strong will. Asuna is vital as she is not only a powerful fighter but also a great leader. She steps up in Kirito's absence and plays a key role in the war. Alice is an Integrity Knight who has a complex backstory. Her understanding of the underworld and her loyalty are important factors in the story. Additionally, there are other characters like Eugeo (even though his presence is more of a memory in this part, it still has an impact on Kirito and the overall story) and the various Integrity Knights who all contribute to the rich tapestry of the novel's story.
The main plot involves the intense battles in the underworld. Kirito and his friends face powerful foes to protect their virtual world and the real - world implications tied to it.
Alice is a significant character. She is a strong - willed and highly skilled fighter in the Underworld. She has a complex backstory and her actions play a major role in the story. Another character is Cardinal, who has important knowledge about the Underworld and helps the protagonists at times.
The key features include its immersive virtual world setting. The Underworld in the novel is a highly detailed and complex virtual realm with its own rules, societies, and cultures. It also has well - developed characters. The main characters like Kirito and Eugeo have deep character arcs as they face various challenges in the Underworld.