One similar light novel could be 'Oreimo'. It also focuses on the relationship between a brother and a sister.
There's 'Haganai: I Don't Have Many Friends'. Although it's more about a group of misfits, it has some elements of exploring relationships that might be somewhat similar in terms of character dynamics. Another one could be 'The Melancholy of Haruhi Suzumiya' which has a unique take on relationships within a group, and while not exactly the same as 'kono naka ni hitori imouto ga iru light novel', it shares the aspect of exploring complex character interactions.
Well, from the title 'kono naka ni hitori imouto ga iru light novel', it could potentially be a story centered around a male protagonist who has a sister. Maybe it's about their daily lives together, the challenges they face, or some kind of mystery or adventure that they get involved in because of their relationship. Light novels usually have elements of slice - of - life, fantasy, or drama, so this one could be a mix of those.
I'm not entirely sure as I haven't played this visual novel specifically. But generally, a visual novel with a title like this might be about a story where there is a sister figure in a particular situation within the narrative world of the game.
You can try looking for it on popular visual novel platforms. Some well - known ones include Steam, which has a wide range of visual novels available. You might also check out specialized visual novel stores or websites that focus on Japanese - style games.
It depends on your personal taste. If you like stories with deep character exploration and a touch of mystery, it might be worth it.
Perhaps its unique setting or the way it portrays its characters could be special.
One similar light novel could be 'Oreimo'. It also deals with some complex relationships between siblings, especially the brother - sister dynamic.
One similar light novel could be 'Sword Art Online'. It also has a fictional world setting where the characters face various challenges and adventures. Another is 'Log Horizon' which shares the aspect of characters being in a different world and dealing with its rules and politics.
Another option is 'A Sister's All You Need'. It focuses on the life of a novelist and his interactions with his sister and other characters around him, sharing some of the family - centered and slice - of - life elements as 'imouto life light novel'.
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 entirely sure as I haven't read this specific light novel. But generally, a light novel often has a unique story. It might be about a relationship with a sister - like character perhaps, given the 'imouto' (sister) in the title.