you need to level them up by taking them on dates, depending on the event depends on how likely the girls will wanna go, some need more convincing
what are the other events that are available other than the mc bd party and how can i activate them bc i see the other girls’ bds in the calendar but idk if there’s something to do or its just there
the only available events for 0.16 is the MC's Birthday and The Beach Day.