thl;dr liz is a university student majoring in vocal performance and minoring in business management, she plays piano in the observatory every friday afternoon and works part-time at sweet stems. (sweet stems employees high fiiiive)
tsukasa is a high schooler who works part-time at the stables and frequents all kinds of food places tbh, he has a little sweet tooth so he's probably in bakeries and cafes a lot. either by himself or with a friend. also he's starting... karate lessons by now/soon/whatever i don't remember what days but yeah