You can try looking on some popular fanfic websites like Archive of Our Own (AO3). It has a large collection of fan - made stories, and there's a good chance you'll find 'killua x biscuit fanfic' there.
One good 'killua x biscuit fanfic' could be the one where they go on an adventure together. It might explore their different personalities, with Killua's assassin skills and Biscuit's wisdom. They could be facing a powerful enemy and relying on each other's strengths.
One common theme is growth. Biscuit often serves as a mentor to Killua, so a lot of fanfics focus on his growth in strength and character under her guidance.
One popular fanfiction is 'The Adventures of Killua and Biscuit'. It takes them on a journey through a new and mysterious part of the Hunter x Hunter world. The author does a great job of portraying their unique personalities and how they interact.
I'm not sure specifically about a fanfic with that exact title. There are a lot of 'Killua x Gon' fanfics out there in the Hunter x Hunter fandom, but to find one with such a strange title would require some in - depth searching through fanfic platforms.
In 'killua x gon fanfic', the theme of sacrifice often appears. Killua or Gon might sacrifice something for the other's well - being. Another common theme is the power of their bond. It's often shown as something that can overcome great obstacles. And there's also the theme of shared dreams. They both have goals as hunters, and fanfics may explore how they pursue these dreams together or support each other in achieving them.
Adventure is also a popular theme. They go on quests together, facing powerful enemies and exploring new places. This allows for a lot of action and character development.
One common theme is the exploration of power dynamics. Hisoka is much more powerful and experienced, and Killua is a prodigy. Their relationship often involves Hisoka testing Killua's limits. Another theme is the idea of redemption or change. Hisoka is a rather amoral character, and in some fanfics, Killua might influence him to change for the better.
I'm not sure if there is a specific fanfic with that exact title. Fanfic availability can vary greatly depending on the fandom platforms and the creativity of the writers. You might need to search on popular fanfic websites like Archive of Our Own or Fanfiction.net to see if such a story exists.
Well, for one, it's the development of their relationship. In a mature fanfic, we see them handling complex emotions. For example, they might face jealousy in a more grown - up way, not just the simple envy a child would feel. Their bond becomes more about mutual respect and understanding.