In this fanfic, it could be that Deku's quirk goes out of control during a training exercise. He loses the ability to contain his power and it ends up consuming him, resulting in his death. This would create a lot of self - reflection among the other students about the risks of their quirks and the importance of proper training and control.
Perhaps in the fanfic, Bakugo dies due to a tragic accident. For example, he could be involved in a training exercise that goes horribly wrong. His death would then shock the entire U.A. High School. His classmates would struggle to come to terms with it, and it might cause some of them to question the safety measures in place at the school. It could also be a turning point for the story, leading other characters to be more cautious and less reckless in their actions.
Uraraka would be heartbroken. She was one of Deku's closest friends. She might lose some of her usual cheerfulness and become more focused on finding out who or what was responsible for his death. She could also struggle with her own self - confidence in using her quirk, as Deku was always an inspiration to her.
A 'bhna deku is the traitir fanfic' might be all about creating drama around Deku. It could introduce new characters or use existing ones in a different way to make the story of Deku being a traitor believable. For instance, there could be a secret organization that is manipulating events to make it seem like Deku is working for the villains. The fanfic might also delve into Deku's internal struggle as he faces this false accusation. He would be torn between his desire to be a hero and the fact that everyone is starting to think he's a traitor. It could be a dark and complex take on the normally positive and heroic Deku character.
One possible plotline could be that Naruto is on a highly dangerous mission alone, perhaps against an extremely powerful and unexpected enemy. He might sacrifice himself to protect his village or his comrades. For example, he could be facing a new type of jinchuriki whose power he underestimated, and in the end, he uses all his strength to seal the enemy away, but at the cost of his own life.
Perhaps the fanfic would show how May's death inspires others to make the most of their lives. Or it could center on a mystery related to her illness and its cause.
You can try searching on popular fanfic websites like Archive of Our Own (AO3) or FanFiction.net. Just type in the exact title or relevant keywords like 'My Hero Academia Deku traitor' and you might be able to find it.
One possible plotline could be that Luna sacrifices herself to save Equestria from a powerful and ancient evil. She might use all of her magic and strength to defeat the foe, but in the process, it drains her life force completely.
One possible plotline could be that it explores the emotional aftermath for Sakura. Maybe she has to deal with feelings of loneliness and guilt, even if she wasn't directly responsible for their deaths. It could also show how she rebuilds her life without her family's support.
One possible plotline could be that Harry Potter sacrifices himself to defeat an even more powerful dark wizard than Voldemort. Maybe this new enemy has a power that can only be countered by Harry's self - sacrifice, which would lead to a very bittersweet ending for the wizarding world.
One possible plotline could be that Harry sacrifices himself to defeat a new and powerful dark wizard. In this scenario, his friends are left to pick up the pieces and continue the fight against the remaining dark forces. Another plotline might involve Harry being poisoned by a mysterious and undetectable substance, leading to his slow and tragic death while his friends search desperately for a cure.