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

One idea could be that female Izuku, with her determination, constantly challenges Katsuki in hero training. Their rivalry turns into a deeper understanding and they start to support each other more. For example, in a joint mission against a powerful villain, they realize each other's strengths and weaknesses and work together seamlessly, which then leads to a new level of friendship that could potentially turn into something more romantic.

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.

One plot idea could be Izuku struggling to control his new Gravity Quirk at first. He might accidentally make things float or slam to the ground. For example, in his daily life at school, his books start floating during class, causing chaos. Another idea is that he uses his Gravity Quirk to create new combat moves. He could manipulate the gravity around his opponents to make them immobile or off - balance.

One plot idea could be that Dadzawa discovers Izuku has some hidden talents that no one else has noticed. For example, Izuku might be able to sense danger in a unique way. Dadzawa then takes it upon himself to train Izuku privately to hone this skill. Another could be that Izuku gets into some trouble at school, and Dadzawa, as a father - figure, has to step in and help him deal with the consequences while also teaching him a valuable lesson about responsibility. A third idea is that they go on a mission together where Izuku's quick thinking and Dadzawa's experience combine to save the day.

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 common theme is the transformation of their relationship from rivals to lovers. They start off being competitive and then gradually see each other in a new light. Another theme is the exploration of their individual growth as they are in a relationship. They learn from each other and become better versions of themselves.

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.