In a Giyuu x Shinobu fanfic, the setting and plot can vary widely. Some might be set during the main events of the Demon Slayer universe, with them facing demons together. Others could be more of an alternate universe story, where they meet under different circumstances, like in a modern - day high school AU. The fanfic could also delve into their backstories and how those experiences shape their relationship. For instance, Shinobu's past with her sister could play a role in how she opens up to Giyuu, and vice versa for Giyuu's own traumas.
I would recommend 'Whispers of the Heart' for Giyuu x Shinobu fans. This fanfic focuses on their unspoken understanding. It's full of small moments that build up their relationship, like when Shinobu leaves a small flower on Giyuu's doorstep as a sign of her care. Also, 'Shadows and Sunlight' is worth checking out. It has a great plot that involves them having to go on a secret mission together and how that journey changes their relationship from colleagues to something more intimate.
One common theme is the exploration of their relationship. Given their different personalities in the original work, fanfictions often focus on how they bridge the gap between them, like how Giyuu's stoicism and Shinobu's more cheerful yet calculating nature interact.
In some cases, if the original manga was adapted into a novel without the knowledge of the original manga, they might face punishment. This was because according to the copyright law of the original manga, the manga author had the copyright and the right to adapt the manga. Therefore, the adaptation could only be carried out if the manga author himself agreed to adapt the manga into a novel.
If the author of the original comic does not agree to adapt the comic into a novel, the adaptation will be considered as a violation of the copyright of the original comic and may face legal punishment. In addition, if the adaptation violated the content restrictions of the original manga, such as changing the character image, plot, or theme in the manga, they might also face punishment.
Therefore, when adapting a novel without the knowledge of the original manga, careful consideration was needed to ensure that copyright law and the content restrictions of the original manga were adhered to.
Changing a manga into a novel without the knowledge of the original manga could result in copyright violation. Adapting a comic or novel requires the permission of the copyright owner, otherwise it may be a copyright violation.
If the copyright owners of the original comic found out about this adaptation, they might take legal action to protect their copyright interests. In this case, the creator of the adaptation may have to bear legal responsibilities, including compensation for damages, penalties, and other penalties.
Therefore, it was best to obtain permission from the copyright owner before adapting a comic or novel. This was not only to avoid the risk of copyright violation, but also to respect the rights of copyright owners and protect their own interests.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can easily search for 'female giyuu fanfiction' using the search bar. Another option is FanFiction.net, which also has a good number of such stories.