Fanfiction about female Izuku and Katsuki as siblings: What are some interesting plot ideas?

At first, it could be rocky. Katsuki might be overprotective in his own rough way, while Izuku would be trying to assert her independence. But as they face more challenges together, like school bullies or difficult hero training, they would start to understand each other better. Katsuki would see Izuku's strength and Izuku would understand Katsuki's underlying care for her.

One idea could be that Izuku is kidnapped by a group who wants to use his knowledge of hero strategies against the heroes. They hold him hostage in an abandoned building. Another could be that a villain with a grudge against All Might kidnaps Izuku as a way to lure All Might into a trap. Maybe a group of anti - quirk fanatics take Izuku because they believe his powerful quirk is a threat to their cause.

A plot could revolve around Izuku feeling a bit down about being quirkless and Tsuyu being there to cheer him up. She takes him to her favorite places in the city, like a small pond where she likes to relax. As they spend time together, they start sharing their dreams and fears. Tsuyu tells Izuku how much she admires his determination without a quirk, and this gives Izuku the confidence boost he needs. Their relationship blossoms from there.

One idea could be Izuku struggling to control his dragon quirk at first. For example, he might accidentally breathe fire during a normal school day, causing chaos. Another plot could involve him discovering unique abilities of his dragon quirk, like flying at high speeds or having super - strong scales for defense. Maybe he has to face a villain who has a quirk that is specifically designed to counter dragon - like powers, which would make for an intense battle.

One possible plotline could be how they manage to keep their relationship a secret from their friends and classmates. They might have to come up with elaborate excuses for why they're spending time together or being overly protective of each other in a way that doesn't seem too obvious.

One plot idea could be that they discover they are siblings through some long - lost family secret. Then they have to navigate the new relationship while also dealing with the threats to their village. Another could be a story where they go on a journey together to find out more about their family's past.

One idea could be that her siblings are also magically gifted but in different ways than Hermione. For example, one might be excellent at potion - making while Hermione is known for her academic knowledge. Another plot could be that they get separated at a young age due to some dark wizard threat, and the story is about their journey to find each other again. A third idea is that her siblings are muggles and Hermione has to keep her wizarding world a secret from them, which creates a lot of comical and tense situations.

Another plot idea is that they explore their family history together. Since Naruto has always been an orphan and Tenten's family background isn't explored much in the original series, they could embark on a journey to find out more about their parents. Along the way, they would face many obstacles and meet various characters who either help or hinder their search, all while growing closer as siblings.

A possible plot in this fanfiction could be that Naruto and Sakura, as siblings, inherit a special jutsu from their ancestors. They have to figure out how to master it together. In the process, they get into all sorts of adventures. They might have to deal with a corrupt ninja in their village who wants to steal their inheritance. Their relationship as siblings would be a source of strength and support, as they rely on each other's unique abilities. For example, Naruto's determination and Sakura's intelligence would complement each other in solving problems.

One possible aspect to consider in fem Izuku and Katsuki fanfiction is their character dynamics. In many stories, fem Izuku might bring a different kind of vulnerability compared to the male version, while Katsuki could still be his brash self. Their relationship might develop in new ways, perhaps with more emotional depth due to the different gender portrayal. For example, fem Izuku might be more likely to show her emotions openly, which could either draw Katsuki closer or push him away at first as he tries to deal with his own feelings in this new context.