Well, 'Fallen Hope' is one that stands out. It explores Deku's descent into villainy in a very compelling way, with lots of plot twists and character development.
His friends would be really shocked at first. Uraraka might be the first to try and comfort him, seeing as she has a kind heart. Bakugo, on the other hand, would probably be both confused and a bit angry at the situation. All - Might would likely feel a sense of responsibility to protect Deku even more than before. The teachers at UA would probably start researching how to reverse the transformation immediately.
One common theme is the corruption of the hero system. These fanfics often show Deku turning into a villain because he sees the flaws in how heroes operate. Another theme is the exploration of good and evil. It makes readers think about whether Deku is truly evil or if he has valid reasons for his actions.
One idea could be that Deku, turned villain, challenges Bakugou's view of heroism. He could expose the flaws in the hero society that Bakugou blindly believes in. For example, Deku might target the way heroes are ranked and how it creates a cut - throat environment. This would force Bakugou to re - evaluate his own pursuit of being the top hero.
One aspect of Deku x Bakugou fanfiction is the exploration of their complex relationship. In the original series, they have a history of rivalry and conflict. Fanfiction often delves into how they might overcome these issues and develop a deeper bond. It could be through shared experiences in battles or personal growth moments. Writers might show Bakugou learning to respect Deku's growth and Deku seeing Bakugou in a new light.