Metro Man might be more laid - back about it. He'd probably see it as a fun take on their world and might even chuckle at some of the more outlandish interpretations of their battles and relationships. He could also use it as a chance to better understand how the public perceives them both.
He would become more cynical. His once - positive view of the world and people would be replaced with suspicion and hatred. He might start to see everyone as an enemy.
I think his friends' reactions would vary. Naruto's closest friends like Shikamaru and Kiba would quickly realize that they need to support Naruto. They would see that despite the strange new form, it's still Naruto. Sakura would be more emotional, she might cry at first but then pull herself together to help. And Sasuke, he would probably see it as an opportunity for Naruto to gain more power, but also be cautious in case the Titan form has any negative effects on Naruto's mind.
There was a father in a family who used to be loving. However, due to financial problems and stress, he turned evil. He became an alcoholic and would often come home drunk and abuse his wife and children verbally. He stopped caring about their well - being and was only focused on his own miseries.
One possibility could be that he's brainwashed. Maybe a powerful villain uses some mind - control device or magic to turn Robin against his friends. In fanfiction, this could lead to some really intense battles where his former teammates are reluctant to fight him at first, but realize they have no choice.
Another plot could be that he is exposed to some sort of mind - controlling substance or technology. The enemy could be using it to turn him against Gotham. Under this influence, he starts to see his friends as foes. He could begin to attack the Bat - family and other superhero allies. His actions would be erratic and violent, and the city would be in chaos as they try to figure out what happened to their hero and how to stop him.
Well, perhaps Asta could be corrupted by a powerful dark magic artifact. He might start to see his friends as obstacles in his quest for power and turn against them.
One possible plot twist could be how his relationships change. For example, his friends might react with shock and confusion at first. Mikasa might have a whole new set of emotions to deal with, like a different kind of protectiveness. Also, the military might view him differently. They could be hesitant to send a 'female - Eren' into battle at first, or they might use his new form to their advantage in different ways, like using his appearance to deceive the Titans.
Well, if Levi turns into a girl in the fanfiction, his fashion sense could be an interesting aspect. Maybe he would start wearing different types of gear. Instead of his usual plain style, he could end up with something more stylish yet practical. Also, his interactions with female characters would take on a whole new dimension. He might be able to better understand the struggles that female soldiers face in the Survey Corps. This could lead to him advocating for more equality within the military ranks.
One possible plot could be that Tails is exposed to some dark energy or a powerful, corrupting artifact. This makes him gradually turn against his friends. He might start using his intelligence to outwit Sonic and the others for his new, evil goals.