A plotline could be that they are initially enemies within the villain world. They have different goals and methods, but as they keep crossing paths and facing common threats from the heroes, they gradually form an uneasy alliance. Along the way, they might also have to deal with their own internal conflicts, like Deku's conscience still nagging at him despite being a villain, and Todoroki's struggle with his family issues still affecting his actions as a villain.
Perhaps they get involved in a power struggle within the villain world. They want to prove themselves as the most feared villains. This could lead to battles with other villains and alliances with some unexpected characters. It could also involve them trying to steal some powerful artifacts or secrets from the hero side to gain an edge in their villainous activities.
A 'villain deku x villain todoroki fanfiction' might focus on their backstories that led them to become villains. It could be that they were both wronged by the hero system in some way. Deku might have been rejected too many times or faced unfair treatment, and Todoroki could have some family - related issues that pushed him to the dark side. The story could then show how they form an alliance and start their villainous journey together.
The 'Villain Todoroki x Deku' fanfiction might also focus on power dynamics. Since both characters have strong quirks, how they use or misuse their powers in relation to each other can be fascinating. For example, Todoroki's ice and fire powers could be used in more menacing ways as a villain, and Deku would have to find new strategies to counter him while still trying to save him from his villainous ways.
Well, in such a fanfiction, it often explores a different side of Deku being a villain and his relationship with Todoroki. It could be about how their dynamic changes from the original story. Maybe Deku as a villain has different motives and goals that somehow involve Todoroki, like trying to use Todoroki's power for his own evil plans or trying to turn Todoroki to his side.
In a 'Villain Deku x Todoroki Fanfic', themes like betrayal could be prominent. Deku's turn to villainy could be seen as a betrayal of his friends and the hero ideals. Another theme is self - discovery. Todoroki might discover new things about himself through his relationship with Villain Deku. Additionally, the theme of acceptance is possible. Whether it's Todoroki accepting Deku as he is or Deku accepting his new role as a villain, it could add depth to the story.
The appeal of 'Villain Todoroki x Deku' fanfiction lies in the contrast between the two characters. Deku is the epitome of a hero, while a villain Todoroki goes against his original heroic - inclined nature. This contrast creates a lot of tension and potential for interesting storylines.
Power imbalance is often a theme. Deku might gain new, more dangerous powers as a villain, and Todoroki has to figure out how to deal with that. There could also be a theme of trust. Since Deku is a villain, Todoroki has to decide whether to trust him or not. And if he does trust him, it could lead to all sorts of complications in the story.
In a 'Villain Deku x Todoroki Fanfic', the characterizations would be key. Deku as a villain could have a new set of motives. For example, he might be disillusioned with the hero system and decide to take a different path. Todoroki, on the other hand, might be initially conflicted about his feelings for Villain Deku. Their relationship could be a complex mix of attraction and moral conflict. The fanfic could also explore how their combined powers might be used in different ways compared to their usual heroic uses. Maybe they form a sort of anti - hero duo that challenges the traditional notions of good and evil in the My Hero Academia universe.
I don't encourage seeking out 'lemon' fanfiction which often contains sexual content. But if you want to explore the relationship between Villain Deku and Todoroki in a more appropriate way, you can join fan forums and ask other fans if they know of any well - written stories that focus on their dynamic, be it a more adversarial or a complex relationship that doesn't involve adult themes.
A plot twist could be that they are being manipulated by a greater villain. They think they are in control of their actions as villains, but in reality, someone else is pulling the strings. This could lead to them realizing they are not true villains at heart and decide to turn against the real villain. Another possibility is that their villainous actions cause an unexpected reaction from the hero society. Instead of just fighting back, the heroes come up with a plan that forces Villain Deku and Villain Uraraka to re - evaluate their motives. For example, the heroes might start to offer amnesty to minor villains, which makes them wonder if they should continue on their villainous path.
To write this fanfiction without the 'lemon' aspect, think about their backstories. Deku's fall into villainy could be due to some great betrayal or a different view on hero society. Todoroki might be on a mission to either save or stop Deku. You can build a story around their ideological differences and how they interact with each other. For example, they could have a series of battles or encounters where they gradually understand each other more.