Perhaps Adrien is in the rubble hospital because Hawk Moth finally managed to directly target him. In this situation, the fanfic could explore how his friends, like Nino and Alya, react to his situation. They might try to figure out his secret identity while he's in the hospital. And it could also lead to some intense moments where Ladybug has to protect him from further harm even in his vulnerable state.
Well, in the fanfic, Adrien could be in the rubble hospital due to a battle gone wrong. Maybe he got seriously injured while fighting an akuma. The hospital setting might be a place for him to have some self - reflection and also for his relationship with Ladybug to develop further, like she could visit him secretly.
The rubble hospital might be a place of danger for Adrien. If Hawk Moth's minions find out he's there, they could try to finish him off. It adds an element of suspense to the fanfic.
In the fanfic, it could be related to an emotional turmoil as well. Adrien has a lot of personal issues and secrets. If something really bad happened, like he found out some truth about his family that shocked him to the core, it might have made him distracted during a fight or a dangerous situation. This distraction could have led to him being in the wrong place at the wrong time and getting caught under the rubble when something like an explosion or building collapse occurred.
Well, he could be there because of a fight with an akumatized villain. Maybe he got seriously injured during the battle and Ladybug had to rush him to the hospital. His identity might be at risk of being discovered if the wrong people see him in his vulnerable state.
One possible reason could be that he got injured during a fight with an akumatized villain. In the Miraculous Ladybug universe, battles can be quite intense and Adrien, as Chat Noir, often puts himself in harm's way to protect Paris. Another reason might be some sort of illness that was magically induced, perhaps by a new villain with a different kind of power that targets the heroes in a non - traditional way. It could also be due to overexertion from using his Cat Miraculous too much without proper rest, which could lead to his body breaking down and him ending up in the hospital.
Perhaps he is found by other characters like his friends or his kwami. His kwami could try to give him some extra strength to recover. If his friends find him, they would call for help and stay with him until medical assistance arrives. They might also try to keep his identity as Chat Noir a secret if he was in his superhero form when he collapsed.
Maybe he was poisoned. There could be a villain with the power to create toxic substances, and Adrien accidentally got exposed. It could also be related to his double life stress. Constantly juggling between being Adrien and Chat Noir might take a toll on his health, leading to a collapse or some kind of health issue that requires hospitalization.
She could be in the hospital because of a bad fall during a chase in her Ladybug form. Her classmates might start a fundraising campaign to help with her medical bills. And Chat Noir could be secretly visiting her at night, leaving little gifts by her bedside.
Plagg would also be there. Plagg is Chat Noir's kwami, and he has a special bond with Adrien. He would probably be worried about Adrien's condition and try to cheer him up in his own unique, mischievous way, like making cheesy jokes or trying to steal some cheese from the hospital cafeteria.
It could be related to his emotional state. Adrien has a lot of pressure on him, both as a model and as Chat Noir. The stress could have taken a toll on his health, causing him to collapse and be hospitalized. In the fanfiction, this could be the starting point for his friends, like Nino and Alya, to realize how much Adrien has been hiding and struggling, and they could come together to support him in a new way.
In the fanfiction, it could be that Adrien's mom had a special bond with the Peacock Miraculous. She was able to use it in a unique way that no one else could. But using it also put her in danger. When she had Adrien, she knew she had to protect him from the threats associated with the Miraculous. So she disappeared, leaving behind clues for Adrien to find when he was old enough. As Adrien uncovers these clues, he gets closer to understanding his mom's connection to the Peacock Miraculous and the secrets she held.