A 'gyaru visual novel' is a type of visual novel that often features characters with 'gyaru' aesthetics. 'Gyaru' is a Japanese fashion and subculture mainly associated with girls. In these visual novels, you can expect to see storylines that may revolve around the daily lives, relationships, and adventures of characters with gyaru - style looks, often with anime - like graphics and multiple-choice based story progression.
I'm not sure exactly as I haven't read it. But generally, a light novel often involves a unique story, perhaps in this one it could be about a vampire (kyuuketsuki) and their daily life including an afternoon nap (ohirune).
One popular 'gyaru visual novel' might be 'Tokimeki Memorial Girl's Side'. It features characters with various styles, some of which have elements of the gyaru look. The game focuses on the player's experiences in school and relationships, and the gyaru - like characters add a unique flavor to the overall story.
It could mean a lot of things. Maybe it's a name of a special being in the fanfic's version of the Naruto world. It might be an elf - like creature that has some kind of power that can't be tamed or understood, which is what 'yaserarenai' could imply.
Since I don't have much information about this 'risou no himo light novel', it's difficult to say exactly. However, light novels often deal with themes like friendship, love, and coming - of - age. So it could be that the story follows a character's journey through life, and this 'himo' is either a goal they strive for, a person they are connected to, or a symbol of something important in their life. There might be different arcs in the story where the character faces challenges related to this 'himo' and has to grow and develop to overcome them.
Yes, it can be used. You could incorporate 'elf san wa yaserarenai' as a unique concept in a Naruto fanfic. For example, if you have a character in the Naruto world who is from a different dimension or has a strange power, you can name it 'elf san wa yaserarenai' and build a story around how it affects the Naruto universe, like how the characters interact with this new element and how it changes the power dynamics.
Some local libraries that have a good collection of international or Japanese literature might also have it. You can also search in some anime or manga - related forums. Sometimes fans share information about where to find rare or not - so - popular light novels like this one.
You can also check local second - hand bookstores. Sometimes they have rare or hard - to - find light novels like 'risou no himo light novel'. Additionally, some niche anime or manga stores might carry it as well, especially if it has some relation to the anime or manga world.
The main themes in 'risou no himo seikatsu light novel' are likely to include adventure. The characters are probably involved in various adventures in the story. Also, friendship could be a major theme. Characters may form deep friendships as they face different challenges together. And there may be a theme of growth, where the characters develop and change over time.