There's no way to tell for sure who Adrian is from just this title. He might be a local figure in a particular community where this 'presentacion' is taking place. Maybe he's someone known for his interesting stories or he could be a new face who has a very personal and secret story to share.
He could be shocked at first. I mean, he has been so close to Marinette all this time without realizing she was Ladybug. His reaction might include disbelief and then a quick acceptance as he starts to piece things together in his mind.
Throughout Adrian's story, his change was quite remarkable. He started out as a rather timid and introverted individual. However, as the story progressed, his experiences, such as traveling alone for the first time and facing unexpected hardships during that journey, forced him to adapt. He became more independent, learning how to solve problems on his own. His social skills also improved significantly. He went from being someone who avoided conversations to actively engaging with people from different backgrounds. This overall transformation made him a much more well - rounded and confident person by the end of the story.
Maya is the focus of this particular story within the 'my 600 lb life' series. Her story probably involves her day - to - day experiences living with a very high body weight. It may also include her relationships with family and friends in the context of her weight. They might have been either a source of support or an added stress factor. Additionally, her own personal goals and efforts towards losing weight and improving her quality of life are likely to be part of the story.
Adrian might be a secondary character in the fiction novel. He could be a friend or a foe to the main character. Maybe he provides some crucial information or causes some trouble for the lead.
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.