my son might be a villain

You could expose him to positive influences. For example, introduce him to kind - hearted characters in the novel's world. Encourage him to participate in good deeds. If he is reborn as a villain, it doesn't mean he has to stay that way forever. By surrounding him with positive energy, he may start to change for the better.

It could be due to past grudges. Maybe in his previous life, he was wronged and now he is seeking revenge.

He might face distrust from other heroes and students. Since his father is a villain, people would be suspicious of his motives. For instance, teachers at U.A. might keep a closer eye on him compared to other students.

The wife in 'A Wife for My Son' may encounter faith - related conflicts when it comes to moral values. Her faith might have taught her certain values about honesty, kindness, and loyalty in a particular way. But in her new family situation, there could be different understandings or practices that seem to go against her own faith - based moral compass. This can lead to a lot of soul - searching and potential clashes as she tries to navigate her new life.

The house owner could be the villain. Maybe they are a cruel person who likes to exert power over others. They lock the girl in just because they can, without any real reason.

There's also a possibility that it's a misanthropic Pokémon that just doesn't like humans interfering in the Pokémon world. It sees Ash as a symbol of human intrusion and decides to kidnap him with the help of the eevee to send a message to all human trainers.

It could be Orochimaru. He has always been interested in Naruto's power. He might set up a trap where Naruto gets severely injured and is bleeding out. Orochimaru could be planning to take Naruto's body or steal his chakra while he is weak.

It's hard to say for sure. Maybe a villain girl who sees a kind side of you that she never expected and starts to develop an interest.

Well, that could go either way. Maybe he has actions that seem villainous at first but are later explained or redeemed. Or maybe the story is set up to make you think he is a villain but it's all a misunderstanding.

One interesting plot twist could be that the son of All Might actually has a quirk that seems weak at first but turns out to be extremely powerful in a unique situation. For example, his quirk might be the ability to sense danger, which initially makes him seem like a liability. But later, when facing an enemy who can hide their presence, his quirk becomes crucial for the heroes' victory.