There could be new characters in Solo Leveling Volume 9 novel. It's possible that there are new recruits in the hunter organizations that Jin - Woo is associated with. These new characters could bring in fresh perspectives and new storylines. Maybe there are also some characters from other dimensions or parallel worlds if the story takes a more fantastical turn in this volume, which would add a whole new layer of complexity to the plot.
I don't have the exact details on Volume 9, but considering the pattern of the series, there could be powerful hunters from other regions introduced. They might come with different fighting styles and powers. There could also be some characters who are somehow related to the ancient history or mystery that the series often delves into.
A mysterious figure also appears. This character seems to have some hidden motives and knowledge about the world of hunters that not even the main character is aware of at first. Their presence adds an air of mystery to the story.
One of the new characters is a young assassin. He is very stealthy and has a set of special skills for killing. He initially appears as an antagonist but later on, there are some interesting developments in his relationship with the main character. There is also a new guild master who brings in new rules and politics to the guild system in the story.
There is also a young trainee who looks up to the main character. This trainee has potential but is also naive in some ways. His interactions with the main character and other experienced characters provide some lighter moments in the story as well as show the growth of the next generation in this world.
I'm not entirely sure which new characters might be introduced in chapter 130. But the main character throughout Solo Leveling is Jin - woo. He's the central figure in the story.
The main character is of course very important. His growth and development drive the story forward. Also, some of the leaders of the guilds become more prominent in this volume. They play important roles in the power dynamics and decision - making processes. And there are new characters who are introduced as allies or antagonists to the main character.
The main character is the protagonist who has the unique solo leveling ability. There are also other hunters who interact with him, like some of his comrades in the hunter organization.
In Solo Leveling Vol 6, there might be some new characters related to the deeper exploration of the gates. However, Jin - Woo remains the most important character. His friends and some of the guild leaders also continue to be important as they interact with Jin - Woo in different ways.
The plot of 'Solo Leveling Volume 1' mainly focuses on the journey of the protagonist. He starts as a rather weak hunter in a world full of gates and dangerous monsters. He gradually discovers his unique ability to level up in a solo way, which sets him apart from other hunters. Through various battles and challenges in dungeons, he begins to grow stronger and gain more recognition among the hunter community.
I'm not sure exactly who the new characters are without reading it fully. But it's likely there will be some new hunters or allies for the protagonist.