I don't have enough details about 'choppiri toshiue demo kanojo novel' to give precise similar novel recommendations. But if it's about relationships in general, you could try 'Pride and Prejudice' by Jane Austen. It's a classic that focuses on the relationship between Elizabeth and Mr. Darcy, exploring themes like love, social class, and family. Although it may not be exactly similar, it does deal with relationship - centric themes that are often found in many novels.
Since I'm not familiar with the 'choppiri toshiue demo kanojo novel', it's difficult to say exactly. It might be a story that delves into the connection between two characters, perhaps with the male character being a bit older ('toshiue' could imply older age), and the story revolving around their relationship, which is common in many novels. But again, this is just a guess.
I have no information indicating that it is popular. There are so many visual novels out there, and without any prior knowledge or data about this one in particular, it's difficult to say it's popular.
Since I'm not familiar with this specific visual novel, it might be about different characters' relationships and the story might revolve around how they interact with each other in various scenarios. Maybe it focuses on the character 'kanojo' and her experiences with different people, but again, this is just speculation without more knowledge.
I'm not familiar with this specific manga. Maybe it explores various relationships and their sexual aspects.
One similar novel could be 'Kimi no Na wa' which also has themes of unique relationships. It's a very popular novel with a beautiful story.
Overall, the 'Kanojo mo Kanojo' anime is a decent adaptation of the manga. There are some minor differences in the way certain scenes are presented, but the core story remains intact. Some characters' expressions and actions might be emphasized differently, but it doesn't change the essence of the story.
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.
There isn't much information available to me regarding its widespread popularity. However, if it has unique storylines, engaging characters, and good graphics (if applicable), it could potentially be popular among the visual novel community. Some visual novels gain a cult following even if they are not well - known to the general public.
One could be 'Oregairu' which also delves into complex relationships in a school and social setting. Another might be 'Toradora!', as it has elements of relationship development between a boy and a girl.
One similar light novel could be 'Toradora!'. It also involves complex relationships between the main character, a girl he has a relationship with and other friends. The story is full of humorous and heart - warming moments.