There's also 'Oregairu'. It delves deep into the main character's thoughts and relationships, much like how 'My sister is a superstar light novel' might explore the relationship between the siblings. It has a good balance of humor, drama, and character growth.
One similar light novel could be 'My Youth Romantic Comedy Is Wrong, As I Expected'. It also focuses on relationships and has a unique story. Another is 'The Melancholy of Haruhi Suzumiya' which has a strong character - driven plot like your mentioned novel.
Well, 'Sword Art Online' might be considered in a way. It has a complex world - building and character development, just like 'My sister is a superstar light novel'. Although it's more about a virtual world adventure, the way characters interact is comparable.
Another similar light novel could be 'Onii - sama ni Sa - shite yo!'. It has themes related to family and growing up together, much like 'My sister's duty light novel'.
Well, 'Overlord' might be a good comparison. Just like in 'perfect superstar light novel', it has a unique world - building aspect. The protagonist in 'Overlord' has his own journey of power - seeking and influence - expanding, which is somewhat similar to the themes that might be present in 'perfect superstar light novel'. Also, 'Log Horizon' can be considered. It also features characters with different abilities and goals in a fictional setting, much like the 'perfect superstar light novel' might.
Well, 'Ascendance of a Bookworm' has some similarities. The main character in that light novel has to build her own 'stardom' in a sense within the world of books and knowledge, which is different from but related to the journey of the character in 'I am a Superstar'. Also, 'KonoSuba' has a protagonist who becomes well - known in his own strange way in a fantasy world, much like how the character in 'I am a Superstar' might gain fame in their respective setting.
One similar light novel could be 'My Youth Romantic Comedy Is Wrong, As I Expected'. It also has interesting character dynamics and a unique narrative style.
Well, 'My Little Sister Can't Be This Cute' is a popular light novel with a similar theme of sibling relationships. It has an interesting story about a boy and his sister.
One similar light novel could be 'Sword Art Online'. It also has a lot of adventure elements in a virtual world like 'my dungeon light novel'. Another one is 'Log Horizon' which features characters exploring and dealing with various situations in a game - like world. There's also 'Overlord' where the main character has to navigate through a strange new world which has some similarities in terms of the exploration aspect.
I'm not very familiar with a specific 'You are my regret light novel'. But some popular light novels in general are 'Sword Art Online' and 'Re:Zero − Starting Life in Another World'. They have engaging storylines and well - developed characters.
One similar light novel could be 'High School DxD'. It also has elements of a supernatural world with demons and a male protagonist in a unique situation. Another is 'Date A Live' which involves dealing with different types of spirits in a somewhat similar vein of the otherworldly and relationships with non - human entities.
One similar light novel could be 'My Youth Romantic Comedy Is Wrong, As I Expected'. It also delves into the life and growth of the main character, with a focus on relationships and self - discovery.
Sure. 'Sword Art Online' is a great one. It also features a lot about swords and has an interesting virtual world setting with intense battles. Another one could be 'Record of Lodoss War', which is a classic that involves sword - fighting in a fantasy world.