How old is nunaa? Hopefully the age gap is small because jiwoo is still in school 😭

She’s around his age maybe 1 or 2 years older? In an early chapter we find out that Jisuk and his sister (Noona, nunna?) lost their parents (aka dead) so noona had to take responsibility from a young age. So she’s more mature. But I think she’s a year or two older. Someone said that Jiwoo stated she’s around his age. Might wanna reread the early chapters after Jisuk, Jiwoo, and Noona met and stuff.