Well, a plot could involve a power struggle. Villain Deku has some new and dangerous powers that he uses to challenge Kacchan. Kacchan, being the proud hero he is, refuses to back down. Along the way, they start to understand each other better. Maybe Deku's villainy is a result of some misunderstanding or being pushed too far by the hero society. As they interact more, they might find a way to reconcile their differences and even work together to change the hero society that led Deku astray in the first place.
For Villain Deku, start by showing his gradual descent into villainy. Maybe he starts having doubts about the hero system and those doubts fester. For his relationship with Kacchan, show how his feelings change from friendship (or rivalry) to something more complex. For Kacchan, show his initial shock and anger at Deku's turn. Then, have him start to question if there was something he could have done to prevent it. As the story progresses, he could start to see the good in Deku again.
Maybe Villain Deku and Toga team up to take down a common enemy that has wronged them both in the past. As they work together, a strange and dark relationship forms between them. Toga starts to develop deeper feelings for Deku, but he's only focused on revenge at first. However, over time, his view of her might change.
A possible plot is a power struggle between them. Since Deku has turned villain, he might see Bakugou as a threat to his plans. Bakugou, on the other hand, wants to bring Deku back to the light. This creates a constant back - and - forth of battles, both physical and psychological, as they try to outwit each other.
Well, a plot could revolve around Villain Deku trying to recruit Uraraka to his side. He might start by showing her the flaws in the hero society that she's a part of. Uraraka, initially resistant, starts to question her own beliefs as Deku keeps presenting her with evidence of the corruption and inequality. This could lead to a very complex relationship between them, where she's torn between her loyalty to the heroes and the allure of what Deku is offering. Or perhaps there's a parallel universe where Deku was always a villain and Uraraka is the only one who can reach the part of him that was once good.
In such a fanfiction, the jealousy aspect can also add a lot of drama. For example, if Deku is oblivious to Kacchan's jealousy, it can create misunderstandings. Kacchan might misinterpret Deku's friendly gestures towards others as something more, and this can cause tension. It's a great way for fanfic writers to delve into the psychological aspects of these two beloved characters and create engaging stories.
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.
A possible plot is that Villain Deku has a plan to destroy a major hero institution, and Hero Deku has to stop him. But when they meet, Hero Deku realizes that Villain Deku was once like him, full of hope. This makes Hero Deku hesitant to fight at full force. Or perhaps Villain Deku has kidnapped someone close to Hero Deku, and during the rescue mission, Hero Deku tries to convince Villain Deku to change his ways. Also, they could be from alternate universes where the roles are reversed, and they are forced to interact and learn from each other.
The theme of misunderstandings is very common. As mentioned before, Deku might not understand why Kacchan is acting so strangely when he's jealous. This can lead to a cycle of miscommunication and further fuel the drama in the fanfiction. Also, the theme of growth is there. Kacchan's jealousy could be a catalyst for his character growth as he learns to deal with his emotions better.
One common theme is growth. Both characters often grow as individuals and in their relationship. For example, they might learn to overcome their insecurities or past rivalries. Another theme is the power of friendship evolving into love. They start as classmates or rivals, and then their bond deepens into something more romantic.
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.