There is also 'Steins; Gate'. This visual novel is famous for its complex time - travel plot. The story is full of twists and turns, and the characters are unique. It has been highly praised for its engaging narrative and scientific concepts.
First, you can search for some well - rated 'onee chan visual novels' on gaming platforms. Look for ones with high user reviews. Then, start with the ones that have more beginner - friendly themes or gameplay if available.
Often, a cliche childhood friend onee-san manga has repetitive tropes like the childhood promise that always comes true or the overused protective older sister stereotype. Also, the story might lack depth in character motivations and have very straightforward story arcs.
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.