She is sitting in the library, studying. It's her most common pastime, by hours; spending time with her sister is more enjoyable but Jaromira prefers to socialize more broadly and Katarzyna would only get in the way. This is better on net; the two of them share a room, so it isn't as though her sister's time is entirely hogged by the other girls who call this boarding school "home." Or at least "prison." Katarzyna doesn't mind it, though; the school library is excellent, and basic manners and care for the books has endeared her to the librarian to a sufficient degree to lubricate the interlibrary loans process when there's something she wants to read that they don't have.
Smile, Katarzyna, it's a useful social lubricant.
"Hello! I'm a magical girl and I'm looking for the paperwork to join a hospital volunteer program?"
"My name is Katarzyna Kozlov and I'm looking for the paperwork to join a magical girl volunteer program."
"Thank you," she says, tucking the folder under her arm and heading back to the elevator.
She flies back to school and gets started on the mountain of paperwork.
Got started on the volunteering process
she texts Isabella.
Not on purpose, but the download link was broken and I had to find out which hospitals would have it.
Technical incompetence! Ironically not much easier to fix than malice!
Alas.
She spends the next few days filling out and returning the paperwork, and before too terribly long magical girl club rolls around again.
And her girlfriend is there!
Mercedes announces that she's organized a double club meeting with another school, and they all need permission slips to meet at the other school. "If it works out we'll take turns and they'll come here."