Another theme could be loyalty. Kuroh and Yashiro might show loyalty to each other in difficult situations. This could be in the face of danger from enemies or when making difficult decisions that affect both of them. Fanfics may explore how far they are willing to go for each other because of this loyalty.
One common theme is friendship development. Since they are characters from the 'k project', many fanfics explore how their relationship evolves from acquaintance to a deeper bond.
Sure. You can try looking on fanfiction.net. There are often many fanfics about different pairings from the 'k project' there. Just search for 'kuroh x yashiro' and you'll likely find some interesting reads.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics, and you can search specifically for 'Kuroh x Yashiro' fanfics. There are often filters to help you find the ones that suit your taste, such as by rating, length, and genre.
A great female Yashiro fanfic usually has an engaging plot. It could be a story about her solving a mystery in a haunted mansion or her journey to a far - away land to save her friends. The plot should keep the readers hooked from the start to the finish. Also, the writing style matters. If it has vivid descriptions of the settings and emotions, it makes the fanfic more immersive. For instance, when describing the spooky atmosphere of a place where Yashiro is, it can really draw the reader into the story.
Well, it depends on which version of the manga you're referring to. In some continuations or alternate storylines, Hanako might not die. But in the main canon, unfortunately, Hanako does meet his end.
Well, I've heard of a fanfic called 'Female Yashiro's Quest'. It's about her going on a quest to find a lost artifact that is crucial for her homeland. The story is full of action and adventure. Additionally, 'The Secret Life of Female Yashiro' is a fanfic that reveals some hidden aspects of her character, her secret desires and fears, which makes it a very engaging read.