One of the main features could be the character development of the sister. Starting as a gal - like character, she may grow and change throughout the story. There could be plotlines about her making friends, dealing with school bullies or social situations due to her appearance and style. And of course, the relationship with her brother or other family members would be a central part of the story, with their interactions evolving over time.
I'm not sure specifically as I haven't read this light novel. But generally, it might be about a girl who is not a 'bocchi' (which could imply not a loner or something specific in the context of the story). It could be a story of her adventures, relationships, or personal growth.
The 'class no bocchi gal wo omochikaeri novel' is likely a Japanese - inspired story. 'Bocchi gal' might refer to a girl who is a bit of an outcast or loner in the class. The 'omochikaeri' part is a bit unclear, but it could be related to some form of change or transformation in the character's situation within the class setting. Without reading it, it's difficult to say exactly what it's about.
You could try looking for it in local bookstores that carry a wide range of light novels. Some big - chain bookstores might have it in their foreign literature or manga sections.
Another option is 'Oreimo'. It has a somewhat similar theme of exploring the relationship between siblings in a rather unique way. It delves into the life of the brother and sister duo, showing their daily interactions, misunderstandings, and the growth of their relationship over time.
I'm not sure where you can specifically find this novel. You could try looking in local Japanese bookstores if it's a Japanese - language novel. Or check some online Japanese book retailers.
Sorry, my answer may not be accurate. As a fan of web novels, I don't have the experience or ability to read novels or understand the genre of novels. But according to the information I know, gal usually refers to a type of video game in Japan where players play a role in the game to talk and interact with other players.
Although there are many excellent Japanese gals, they are usually not group dramas because they usually tell the story from the perspective of a single character. On the contrary, group dramas usually referred to telling a story from the perspective of multiple characters. These characters were connected to each other to form a whole.
Of course, this is just some information I know. If there are other questions, I will try my best to answer them.
Well, 'Girlboss' isn't a strict true story of Nasty Gal. It might draw from real incidents but is likely adapted and embellished to create a compelling show.