There might be. The Naruto fandom is huge, and with all the creativity out there, a lewd new world Naruto fanfic could exist. But it could be buried among countless other fanfics, and finding it could require specific search terms and patience.
I'm not sure specifically as 'lewd' implies inappropriate content which is not acceptable in a general Naruto fanfiction context. Naruto fanfiction usually focuses on things like new adventures, character development, or alternative storylines within the Naruto universe that are in line with the spirit of the original work.
The fanfiction 'Naruto: Into the New Realm' is also quite interesting. It takes Naruto and his friends into a previously unknown realm within the Naruto universe. They have to learn new skills and face new threats. These fanfictions are all about expanding the Naruto world in positive and creative ways without any inappropriate content.
The legality of lewd visual novels can be complex. In many places, if they contain excessive sexual or inappropriate content, they may violate obscenity laws. However, it also depends on the rating system and the context in which they are distributed. In general, it's a grey area and often not considered proper or acceptable in mainstream society.
One characteristic could be the exploration of new worlds or settings. In a non - inappropriate fanfic, this can be used to create unique adventures for Naruto and his friends. For example, a new land with different chakra - based creatures.
You could try 'Jane Eyre'. It's a story of a young woman's journey through life, love and self - discovery. '1984' is also excellent as it presents a dystopian future where the government has extreme control. And 'Fahrenheit 451' which is about a society that bans books and a man's journey to question that.
You can also preview the novel if possible. Many e - book platforms allow you to read a sample of the book. By doing this, you can quickly get an idea of the writing style and content. If you notice any signs of inappropriate or lewd content in the sample, you can avoid the whole novel.
In general, they are not ethical. While the Renpy engine can be used to create a wide variety of visual novels, those with 'lewd' content cross the line. They promote an improper view of relationships and sexuality. There are so many other positive and creative ways to use the Renpy engine to create visual novels that are both entertaining and educational without relying on 'lewd' content.
Definitely not. Children need positive, educational and moral stories at bedtime. Lewd stories go against the values we want to instill in children. They may introduce ideas that are too mature and improper for their innocent minds.