Bakugo might initially be in denial. He's always had a complex relationship with Izuku, and seeing him in such a state could shatter his world view. He might become more withdrawn or, on the contrary, be spurred into a violent rage against whoever was responsible.
It could be about a fan - created story in the My Hero Academia (MHA) universe where Bakudeku (presumably a relationship or dynamic between Bakugo and Deku) are involved with a secretary agency. Maybe they work there, or the agency has something to do with their hero activities.
You can try looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. They have a large collection of My Hero Academia fanfics, and you might be able to find the 'bakudeku secretary agency mha fanfic' there.
One common theme is the struggle for acceptance. Since she's a female in a world where the main character was originally male, she often has to prove herself more. Another theme is friendship. Female Izuku's relationships with her friends, like Bakugo or Todoroki, are often explored in new ways.
Perhaps 'Izuku's Eating Disorder: Bakudeku to the Rescue'. Bakudeku's dynamic in this fanfic is crucial. Bakugo notices Izuku's erratic eating habits. He tries to understand Izuku's emotional state that led to the disorder. Bakugo slowly and patiently helps Izuku by setting up a routine for meals. Their bond grows stronger as Bakugo is there for Izuku during his weakest moments, providing both physical and emotional comfort.
Izuku would probably be terrified at first. After all, he's been kidnapped by villains. But then, his hero - like determination would kick in. He might start looking for ways to escape or at least resist their plans.
A villain like Shigaraki would likely be interested in the power levels in the MCU fanfiction. He's always looking for ways to increase his own power, and seeing the various powerful artifacts and abilities in the MCU might give him some ideas. He could think about how he could use similar things in his own plans to take over the MHA world.
One popular MHA female Izuku fanfiction is 'She - Izuku Midoriya'. It offers a unique take on Izuku being female and explores how her character would interact differently in the MHA universe. Another great one is 'Female Izuku: A New Heroine'. It delves into the challenges she might face as a female in a male - dominated hero world and how she overcomes them.
One possible consequence could be the extreme shock and grief among his friends and allies. They would likely be devastated and it could lead to a downward spiral in their morale. For example, his classmates like Ochaco might blame themselves or become extremely angry at the situation.
The fanfic could show Bakugo researching about eating disorders to better understand Izuku's situation. He then uses his knowledge to create a safe environment for Izuku to eat. For example, he makes sure there are no distractions or stressors during meal times. Also, Bakugo might share his own insecurities with Izuku to make him feel less alone, which can be a big part of Izuku's healing process.