The theme of growth might be present. As the relationship progresses, the characters may grow and change. Also, the theme of society's views on such relationships could be explored, as it's not a common relationship type in society.
Well, 'yandere kanojo ga isekai novel' could potentially be a story where the female lead who is a yandere gets sent to an isekai world. Maybe she uses her yandere tendencies to get what she wants in that strange new world. It could be full of drama, as she might be overly protective of someone she likes in the isekai world, or she could be causing chaos because of her extreme love and possessiveness.
The title 'boku to kanojo no game sensou novel' strongly suggests that the main characters are 'boku' (a male) and 'kanojo' (a female). Their interactions and the so - called 'game' they are involved in form the core of the story. It's possible that they have distinct personalities. For instance, 'boku' might be more competitive or strategic in the 'game', while 'kanojo' could be more intuitive or emotional. And there may be other characters in the background who influence their relationship and the progress of the 'game'.
Well, 'boku to kanojo no game sensou novel' might be a story full of interesting interactions. Maybe it's about the power struggle or the emotional tug - of - war between the male and female characters, just like in a game. It could have elements of competition, cooperation, and the exploration of the relationship dynamics. But again, this is just speculation without delving into the actual content of the novel.
I'm not entirely sure as I haven't read it fully. But generally, it might be about the relationship and the 'game' - perhaps some sort of emotional or strategic interactions between the male character (boku - 'I') and the female character (kanojo - 'she').
One of the main themes could be the exploration of power dynamics within relationships. Given that one is a teacher and the other a student, there are power imbalances that come into play. Also, self - discovery might be a theme as the characters navigate this unorthodox relationship and how it affects their understanding of themselves. Another possible theme is the idea of breaking social norms and the consequences that follow.
I'm not familiar with the specific details of this novel, but typically in such a story, the yandere kanojo would be a main character. There could be a male lead that she becomes obsessed with in the isekai world. And then there might be side characters like the local inhabitants of the isekai world, perhaps a wizard who helps or hinders her, or a group of warriors that she has to interact with depending on the plot of the novel.
As the title suggests, the two main characters should be 'boku' and 'kanojo'. 'Boku' is often used by male characters to refer to themselves in Japanese, so it's likely a male lead. 'Kanojo' simply means 'she' in Japanese, indicating a female character. We can assume that they are central to the story, and their relationship and the 'game' they are involved in form the core of the novel.
I'm not sure about its popularity. It might be popular within certain niche communities who are fans of visual novels, especially those interested in stories with female - centric characters. However, without more data on its sales or community following, it's hard to say for certain.