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.
There's a fanfiction called 'Kotomine and Shirou: United Front'. In this one, they are forced to team up against a common enemy that neither could face alone. The story delves deep into their relationship, starting from their initial distrust and gradually building towards a mutual respect and understanding. It's a great read for those who like character - development - focused fanfictions.
When looking at the battle between Shirou and Kotomine in the visual novel, we need to consider their character development up to that point. Shirou has grown through his experiences and his relationships with other characters. This growth affects how he approaches the fight. Kotomine, with his long - standing plans and knowledge, presents a formidable opponent. Shirou's tenacity and the power he has acquired through his journey are crucial in this battle. The battle is also a display of the visual novel's complex storytelling, as it ties in with the overall themes of the story, such as the nature of heroism and sacrifice.
The popularity of Kotomine Shirou crossover fanfiction lies in the contrast between the two characters. Kotomine is often seen as a complex and morally ambiguous character, while Shirou is more of an idealist. When they are brought together in a crossover, it creates a lot of interesting dynamics that fans love to explore.
A common concept is a power - up or alternate power - set for both characters in the crossover. Shirou might gain some of Kotomine's knowledge of the Grail or his combat skills, while Kotomine could inherit Shirou's ability to project weapons in a new and unexpected way. This could change the power dynamics in battles and the overall plot of the fanfiction.
It's hard to say who is more likely to win. Shirou has his strong will and growth throughout the story. But Kotomine is very cunning and has a lot of knowledge and power. It could really go either way depending on how the story unfolds and the specific circumstances in the visual novel.
First, understand the characters well. Know Shirou's journey of self - discovery and his heroic ideals, and also understand Kotomine's motives and his rather dark view of the world. This will help you write their interactions more authentically. For example, when they have a conversation, you can make it feel natural based on what we know about their personalities.
You can start by looking on fanfiction.net. It has a large collection of Fate - related fanfictions, and you're likely to find some good ones about Shirou Kotomine and Saber Alter there. Just use the search function and type in the relevant keywords.