If Plagg gets akumatized in fanfiction, Adrien's reaction would be the most intense. He would be heartbroken and would immediately try to communicate with Plagg, hoping to reach the part of him that is still his friend. Ladybug would be in a state of high alert. She would likely call upon all the other heroes she can for support. Chat Noir's friends from school, like Nino, would be really confused. They might not understand what's going on completely but would still want to help. And Master Fu, if he's still in the picture, would be very concerned as he knows the importance of the kwamis and the potential disaster that an akumatized Plagg could bring.
The characters' reactions would be quite complex. Adrien would first be in denial, not wanting to believe that Plagg could be akumatized. Then he would feel a mixture of anger and sadness. He might blame himself for not being able to protect Plagg. Marinette as Ladybug would be focused on the bigger picture. She would try to assess the situation quickly and figure out if there are any weaknesses in the akumatized Plagg's powers. Tikki would be worried too, as she has a relationship with Plagg. She might offer some advice to Ladybug based on her knowledge of kwamis.
Well, if Plagg gets akumatized in fanfiction, it could lead to some really chaotic situations. Plagg's powers are already quite strong as a kwami, and with the akuma's influence, they might become uncontrollable. For example, his cataclysm power could be misused on a large scale, causing destruction all over Paris. Maybe he would turn against Adrien and the other heroes, creating a big rift in their relationships and making it extremely difficult for them to fight back.
Ladybug would be extremely shocked and heartbroken. She has always seen Cat Noir as her partner and friend, and to see him akumatized would be like losing a part of herself. She would be determined to save him at all costs, trying to find a way to communicate with him beneath the akuma's influence.
Her best friend might be very concerned and protective. They would try to keep her from doing anything too crazy while drunk. For example, if she tries to walk into traffic, they'd stop her.
Naruto would be devastated. He and Sakura have a long - standing relationship, and her death would hit him hard. He might go into a rage, seeking revenge on whoever was responsible. Sasuke, too, would be affected. Even though their relationship was complex, Sakura was still an important part of his life. He could become more withdrawn or more determined to change the world that allowed such a thing to happen.
She might be shocked at first. After all, she has no idea that Chat Noir has a kwami. But then she would probably be curious and start asking Plagg all kinds of questions.
In a fanfiction scenario where Marinette gets akumatized, it's a really fascinating concept. Marinette is known for her strong will and positive attitude, but if she's akumatized, all that could be flipped. Her akumatized form might be influenced by her repressed emotions, such as her jealousy over Lila's lies being believed so easily. Her akuma - powered actions could start to cause chaos in Paris. And it would be a great opportunity for the other characters to step up and try to save her, not just as Ladybug, but as Marinette. There could be a lot of self - discovery and character growth for everyone involved as they face this new and unexpected threat.
Scott would probably be very protective. He'd feel responsible for taking care of Stiles and making sure he doesn't get into too much trouble. Lydia might be initially shocked but then use her intelligence to try and figure out how to reverse the situation. And Derek, well, he'd probably be a bit annoyed at first but would also end up being one of Stiles' protectors.
Li Shang would probably be very concerned. He might blame himself for not protecting her better. He would immediately call for the best medical help available and stay by her side until she recovers.
The Twilight characters would be quite shocked. Vampires like Edward might be very suspicious of Hermione's new status as an imprinted character. Werewolves like Jacob would have a different reaction. Since imprinting is a big part of their culture, they might be more accepting but also cautious as Hermione is an outsider from a different fictional universe. They would need to figure out how to incorporate her into their pack or deal with her in some way.
Harry would probably be in a state of shock and disbelief at first. He'd be filled with a mix of fear, confusion and anger. Voldemort might be initially dismissive or see it as an opportunity to further his own dark plans. Hermione would be practical, trying to find solutions in books and magic. Ron would be more likely to be openly disgusted at first but might come around to support Harry as a friend.