Another plot could be that Bakugo is targeted by a group of villains specifically because of his powerful quirk. They manage to overpower him in a surprise attack. His death would not only be a great loss to the hero side but also a major victory for the villains. This would then set off a chain of events where the remaining heroes vow to avenge him and become more determined to take down the villain group that was responsible for his death.
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.
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.
Deku would be devastated. He has always seen Bakugo as both a rival and someone he deeply cares about. His reaction would likely be a mix of extreme grief and guilt. He might feel that he could have done more to protect Bakugo. Kirishima, who is Bakugo's friend, would be heartbroken. He would probably be filled with anger towards whatever caused Bakugo's death and would be determined to make the culprit pay. Ochaco and the other classmates would also be in shock. They would come together to support each other through the difficult time, but they would also feel a great sense of loss as Bakugo was an important part of their class dynamic.
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.
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.
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.
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.
In the fanfic, Naruto could die from an unexpected illness. His parents, who have been watching over him in spirit, are devastated. They might try to find a way to communicate with the living to tell them how special Naruto was. The mourning process could involve them seeing how the village comes together to remember Naruto, with his friends and comrades sharing stories of their adventures together. This would make his parents realize the kind of person Naruto had become and how much he meant to everyone.