Ladybug would see Disneyland as a place full of positive energy. She would be cautious at first, always on the lookout for any signs of trouble. But as she explores, she'd start to enjoy the different shows and parades. Chat Noir would be like a big kid. He'd want to try every single ride and interact with all the costumed characters. He might even challenge some of the Disney villains to a friendly duel. And Marinette, well, she'd be busy taking mental notes for her future fashion creations, while also being in love with the whole Disney atmosphere.
The characters would have a range of reactions. Marinette as Ladybug would be very aware of the importance of protecting the happiness of all the people in the park. She'd see it as her duty to keep the magic alive. Adrien as Chat Noir would be more carefree, but still vigilant. He might get distracted by the food, like the delicious Mickey Mouse-shaped ice creams. And when it comes to the characters like Tikki and Plagg, Tikki would be delighted by the positive emotions in the park, while Plagg would be more interested in finding some stinky cheese in the food stalls, but also ready to help in case of danger.
Marinette's friends, like Alya, would be heartbroken. Alya, being Ladybug's biggest supporter, would probably feel a sense of loss and confusion. She might start to investigate Ladybug's death, trying to figure out what really happened. The other classmates would also be affected, with the mood at school becoming very somber.
Marinette (Ladybug) would probably be both overjoyed and terrified. She'd be happy to have a new life in her family but also worried about protecting her. Adrien (Chat Noir) would be super excited and very protective. He might even be a bit over - protective at times. Alya would be the supportive best friend, helping Marinette with baby stuff and giving her advice on how to balance motherhood and superheroing.
Chat Noir would be really worried. He might blame himself for not being there to protect her. He would probably stay by her side until she recovers. And Marinette's friends like Alya would also be concerned. They might try to keep her identity a secret while also taking care of her as Marinette.
Master Fu might be a bit more cautious. He would see the potential risks not only to Ladybug but also to the Miraculous. He might try to find a way to transfer the Miraculous to someone else temporarily during her pregnancy to ensure its safety. But he would also understand Ladybug's determination and try to support her as best he can while still being concerned about the balance of the Miraculous world.
She would also be very determined to bring him back to the good side. Ladybug might search for a way to break whatever spell or influence has made Chat Noir evil. She could look for a special power - perhaps from another Miraculous or a magical item - that can reverse the change. And in the meantime, she has to be careful not to get hurt by Chat Noir while still trying to protect Paris.
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.
One possibility is that Ladybug and Chat Noir could be on a mission at Disneyland. Maybe they have to stop an akuma that has infiltrated the park. The villains might be using the magic of Disneyland to create chaos, like making the rides go haywire. Ladybug and Chat Noir would then have to use their powers and wits to save the day while also enjoying the unique environment of Disneyland.
Marinette (as Ladybug) would be devastated. She might isolate herself at first, blaming herself for not being able to prevent it. Alya would be very concerned for Marinette and try to comfort her, but also be in shock at the loss of Chat Noir. Nino would probably be heartbroken as well, since he was friends with Adrian. The other classmates might be sad and confused, and there could be a general sense of gloom over the school.
Spiderman would likely be initially cautious when meeting Ladybug. He's used to operating on his own in New York, and suddenly meeting a hero from Paris with a very different power set would be a bit of a shock. He might be impressed by her ability to create objects with her yo - yo and use them in combat.
Obviously, Marinette and Adrien would be key characters. Marinette could be the host of the sleepover, and Adrien might show up unexpectedly, either as himself or as Chat Noir. Their interactions would be the focus, whether it's some cute and awkward moments between them.