It's likely a visual novel related to the 'Nanbaka' series. It might include the unique characters, settings, and storylines from the original 'Nanbaka' work, perhaps with interactive elements and different plot branches for players to explore.
I think you could also try searching on Wattpad. There might be some interesting Nanbaka female Jyugo fanfics there. Look for ones with high ratings and a good number of reads. It's a great way to find stories that are popular among the fan community. Maybe you'll find a fanfic that delves into a unique adventure or a heart - warming friendship involving the character.
Overall, Nanbaka Season 2 adheres closely to the manga. There are a few minor tweaks for better adaptation to the animation format, but they don't deviate significantly from the original story.
A different approach could be a fanfiction where the younger sister has a special power or ability. She uses this to help the inmates in Nanbaka break out for a noble cause, like rescuing an innocent person who was wrongly imprisoned elsewhere. However, this would put her at odds with Momoko, who is dedicated to her job at the prison, creating an interesting family conflict within the story.
You can try looking for it on official gaming platforms like Steam. Sometimes, visual novels are also available on the official websites of the developers or publishers.
A good Nanbaka female Jyugo fanfic should have a well - developed character for Jyugo. It should capture her personality traits accurately. Also, a great plot is essential. Whether it's a story about her escaping from a tricky situation or forming a new bond with another inmate, the plot should be engaging. Good writing style, with vivid descriptions and proper pacing, also makes a fanfic stand out.
A story involving your girlfriend, best friend and the idea of a threesome is a minefield. Firstly, you need to think about your own values. Are you okay with sharing an intimate moment in such a way? Your girlfriend has her own feelings and expectations in the relationship. If she's not into the idea, it's a definite no - go. Your best friend should also be sensitive to the relationship dynamics. In general, it's better to focus on building healthy, monogamous relationships rather than exploring such risky and potentially relationship - ruining scenarios.