Junko: she likes a bunch of violent manga and videogames, specially those that include war/soldier related themes
Maizono: the idols she saw smiling on tv were actually perfume (AND YOU CAN’T CONVINCE ME OTHERWISE).
Fukawa: she’s actually able to read and write in several languages.
Kirigiri: Kirigiri is really interested in japanese traditional art but she also spends some of her time trying to follow stuff like fashion and mainstream music releases.
Celes: doesn’t know how to play hanafuda.
Sakura: she’s actually a huge tea fan and secretly wants to learn how to make blends.
Aoi: despite being part of several sport teams, she’s not the greatest team player.