Well, Kirei and Gilgamesh make for an interesting pairing in fanfiction. Their complex personalities can lead to some really intense and thought - provoking stories. Kirei's inner conflict and Gilgamesh's haughty nature can create a lot of drama and tension.
In this type of fanfiction, the 'fated encounter' trope is quite popular. Writers like to show how Kirei and Gilgamesh's paths cross in a way that seems almost predestined. It gives a sense of grandiosity to their relationship. Additionally, the 'clash of ideals' trope is often used. Gilgamesh's self - centered and somewhat hedonistic ideals might clash with Kirei's more conflicted moral compass, and this can create a lot of interesting plotlines as they either try to reconcile or go their separate ways.
I'm not aware of its popularity without more information. There are countless visual novels out there, and its popularity would depend on various factors like the quality of the story, the art, and the marketing.
I'm not sure specifically as there could be many interpretations. It might be a visual novel related to a beautiful wife ('tsuma ga kirei' can mean'my wife is beautiful' in Japanese). Maybe it's a story that revolves around the relationship with a beautiful female character, perhaps including elements like love, family, or daily life in a fictional setting.
You can start by looking on fan - fiction platforms like FanFiction.net or Archive of Our Own. These sites have a large collection of fan - fictions for various series, including Tsuki ga Kirei. Just search for 'Tsuki ga Kirei' in their search bars, and you'll be presented with a list of available fan - fictions.
School life is also a common theme. The anime is set in a school environment, so fan - fictions often expand on the characters' school experiences. This could include things like joining school clubs, dealing with exams, or making new friends at school in the context of the Tsuki ga Kirei universe. It gives more depth to the characters' daily lives.
One common theme could be magic and its use. Since 'Charmed' is about witches, fanfics might explore different magical abilities or spells. Another theme could be family bonds, as the Halliwell sisters in 'Charmed' have a strong family connection. And perhaps the theme of good vs. evil, which is central to the show, might also be explored in these fanfics.
I'm not sure specifically as it's not a widely known visual novel to me. It could potentially be about a story where a wife ('tsuma') becomes beautiful ('kirei ni natta') in some context. Maybe it involves a character development arc for the wife that leads to her transformation in appearance or personality.
It could be the unique relationship between Benjamin and Elizabeth within the context of the 'Charmed' universe that makes it special. Their interactions might bring a fresh perspective to the story.