go to ruins at midnight
nope
i opened it there seems to be no option to change, i mean there is but it only has english
you could probably ask in their discord on when's chapter 1 gonna be, and from the christmas event it teases you probably can
you can't have romance other npc's for now from what i know it should be avail in chapter 1 or after there's just no events for them in prologue
idk why i took quite abit of time to finish the game but god damn is it good cant wait for chapter 1 public release i would have supported through patreon but im broke so hopefully soon id get to support the devs ^-^
