Sure. 'Net juu no susume' is a great light novel. It often has interesting storylines that revolve around the world of online gaming and the characters' growth within that virtual and real - life context.
Since I don't know what 'juu' is, I can't directly name the latest novel. However, if 'juu' is a new or relatively unknown writer, you might start by looking at local bookstores in your area, or even asking librarians if they've heard of any new releases by an author named 'juu'.
I'm not sure specifically what 'Cap deage' means. It could be a very specific term, a misspelling, or something relatively unknown. It might be a proper name, a local term in a certain area or a very niche concept.
Some social media platforms can be useful in finding the latest novel of 'juu'. For example, on Goodreads, you can search for 'juu' and see if other readers have mentioned a new book. Additionally, if 'juu' has an official website or social media account, that would be a great place to look for information about their latest novel release. You can also join book clubs or groups related to the genre that 'juu' might be writing in, and ask fellow members if they know about the latest 'juu' novel.
I haven't read this light novel specifically. But generally, in a light novel about the strongest wizard at ten years old (assuming 'juu sai' means ten years old), we can expect themes like the character's journey to master magic, facing challenges from other magic - users, and growing in power and wisdom.
I don't have enough information to say exactly who Cap'n Kathy is. She could be an original character created by the fan fiction writer. Maybe she's a pirate - the 'cap'n' part could suggest that - who has some connection to the wizarding world of Harry Potter.
Perhaps its special feature could be the young age of the main character, being just ten years old (again, assuming 'juu sai' is ten years old) while being the strongest wizard. This creates an interesting contrast and potential for growth and development throughout the story.
Most yome juu jap pc visual novels also have a strong focus on character development. As you progress through the story, you get to know the characters better, their personalities, their dreams, and their flaws. This makes the players more emotionally invested in the story and the characters.