Caio is mostly worried that he's going to get murdered. It doesn't seem like it will help to worry about mals, that's strictly better in school than out of it really, he has whatever chance of being eaten by a mal that he has and while he will try to be sensible about it it's not a school-specific concern. But school completely lacks adult supervision unless you count extremely distracted eighteen year olds who won't give a shit about an indie Brazilian alchemist even to the point of forming a complete sentence about not giving a shit. Somebody might just straight-up murder him and get away with it! That's definitely more of a school concern than a general one. His mother thinks he's being silly and he tries not to talk about it enough to scare his little brothers and he studies very diligently.

He is... not good at languages. He has Portuguese and English from the cradle and a sad smattering of Spanish from before they figured out he should be an alchemist that is going to bite him in the ass a little bit but at least it's pretty similar to Portuguese. It will nibble him gently in the ass?

He has his magic water condenser to reduce trips to the bathroom for drinking water because his mother has trauma about amphisbaena and he has a small pink salt lick because his dad has trauma about being sodium-deficient after a string of bad luck in the cafeteria and he has a shield brooch. His nails are trimmed, his head is freshly shaved, and his mother is stuffing his bag with extra socks at the weigh-in. His sendoff is at two in the morning, so he has a sendoff breakfast with all his favorite things, takes a long nap in the afternoon, poses for a last photo with everybody, puts the little brothers to bed, toasts a clinger that wanted the next-oldest, checks his bag against his packing list, and stays up for it.

Ohhhhh he does not like this sensation at all and he really hopes he gets to experience it again one day.