Yui Komori was the Queen of Wild Mushrooms in " Demon Lovers " and a witch with the Demon's Eye. She was originally an ordinary witch, but after a mysterious incident, she was swept into a dangerous world and became a living sacrifice bride.
The reason why she was called the " living sacrifice bride " was actually related to her experience. In the novel, Omori was forced to become a living sacrifice by the nobles of the wild mushrooms in order to pray for the redemption of the Demon's Eye. Therefore, she became the " living sacrifice bride " and the target of others seeking redemption from the Demon Eye.
Another reaction could be that Marinette pretends to cooperate with Adrien at first. By doing this, she can buy time and look for an opportunity to escape or get help. She might act as if she is okay with what is happening while secretly planning her next move, like leaving a clue for someone to find her or finding a way to disable Adrien temporarily.
Marinette can react by standing up for herself. She might confront Chloe directly and tell her that her actions are wrong. This shows Marinette's strong character.
Marinette might be initially shocked when Adrien steps in to protect her. She could be very grateful and show it with a shy smile or a simple 'Thank you.'
If the grandfather is very warm and accepting, Shikaneji would feel relieved and happy. They might open up more about their relationship and their dreams. Nejire could start chatting excitedly about their future together, and Shinsou would relax and join in the conversation more. However, if the grandfather is not so friendly, they would be disappointed and perhaps a bit defensive.
Naruto would probably be extremely hurt at first. He values friendship and loyalty a great deal, so Anko's betrayal would be a huge blow. But he wouldn't give up. He'd likely try to talk to Anko to find out why she did it, hoping to change her mind.
Batman would probably isolate himself at first. He'd retreat to the Batcave to analyze the situation. He might feel a sense of guilt, thinking he should have seen the betrayal coming. After that, he'd start planning his counter - move. He'd use his vast resources and knowledge to expose the truth behind the betrayal and take down whoever is behind it.
One possible plotline could be that Marinette's best friend reveals her secret identity to someone she shouldn't. This would make Marinette feel extremely betrayed as her identity is crucial in the Miraculous world. Another could be that the people she thought were on her side in the fight against Hawk Moth turn against her due to false accusations. For example, if someone spreads the rumor that Marinette is working with Hawk Moth, her allies might start to doubt her and treat her coldly, which is a huge betrayal.
He might be initially shocked and heartbroken. Naruto has always valued his friends and the village's trust, so when that's suddenly taken away, he's in disbelief. He could try to reason with his friends at first, but when they don't listen, he might become angry and determined to prove his innocence on his own.