A good plot could involve Nejire being assigned to mentor Izuku in a special aspect of hero training. As they spend time together, Nejire starts to notice Izuku's unique qualities that are different from what others see. They could also face a villain who targets them specifically because of their potential as heroes. During this difficult time, they rely on each other not just for protection but also for emotional support, and this strengthens their bond.
For Izuku, start with his insecurities. Maybe he initially feels intimidated by Nejire's powerful quirk. As they interact more, he could learn to be more confident around her and also incorporate some of her fearless attitude into his own hero persona. Nejire, on the other hand, might start off seeing Izuku as just another student. But as she witnesses his unwavering determination, she begins to respect him more. You can show their development through small moments, like conversations during lunch breaks or while waiting for a training session to start.
There's a fanfiction where Izuku helps Nejire train to master a new skill. In the process, they get to know each other better. Nejire is intrigued by Izuku's growth mindset, and Izuku admires Nejire's confidence. This mutual admiration leads to a budding romance.
Izuku is often shy and self - doubting, while Nejire is outgoing. In fanfiction, Nejire can bring Izuku out of his shell. For example, she might drag him to social events at school. Izuku, in turn, can ground Nejire with his practical thinking when she gets too carried away.
A different plot might be that the yandere is a childhood friend of Izuku who was always in the background. As they grow older and Izuku becomes more involved in the hero world, her yandere feelings surface. She starts to collect mementos of Izuku secretly and becomes extremely jealous of any girl who shows an interest in him, leading to a lot of drama and conflict within their friendship circle.
The plot might revolve around a strange phenomenon that links their two universes. Female Izuku and Giorno are brought together and at first are confused. However, they soon start to communicate and find that they are both heroes in their own right. They have to figure out how to get back to their respective worlds while also dealing with the feelings that start to develop between them. This could involve them learning from each other's combat and heroics techniques.
A plot could revolve around Toga disguising as someone close to Deku, like Uraraka. At first, Deku is suspicious but as they interact more, he realizes it's Toga. Instead of fighting her right away, he tries to understand why she is so obsessed with him. This could lead to a series of events where they both learn more about each other's pasts and what led them to be who they are.
One plot idea could be that Izuku and Momo are paired up for a special training mission. They have to learn to combine their quirks in new and unexpected ways. For example, Izuku's super strength could be used to enhance Momo's creation of large and complex structures. Another idea is a story where they both get trapped in an alternate dimension and have to rely on each other to find a way back. They face various challenges that test not only their quirks but also their friendship and trust in each other.
One idea could be that Toga, in an attempt to understand Izuku better, tries to live a normal life like him for a while. She disguises herself and enrolls in U.A. High, leading to a series of comical and tense situations as she tries to hide her true identity from Izuku and the other students.
One idea could be that Shoto and Izuku have to team up for a special training exercise that goes horribly wrong. They end up in an unknown part of the forest and have to rely on each other's quirks to survive and find their way back. For example, Izuku uses his One For All to climb tall trees to get a better view, while Shoto uses his ice to create shelters at night.
One possible plot idea could be Izuku developing a new and unique quirk spiral ability that sets him apart from his peers. Maybe it starts as an unexpected mutation of his existing power. Another idea could be Izuku getting caught in a time - spiral within the My Hero Academia universe, where he has to relive certain events to change the outcome for the better. And a third could be Izuku's spiral being related to a spiritual or mental journey, where he discovers hidden aspects of himself and the hero world.