Responses
white and black haired ones are 20. white haired one dropped out for a yr and went back to school. i assume the same with the black haired one. the blonde is 19. all in their senior yr. in korea students usually graduate at 18 or 19. that might explain why they look older ig.
but fr even irl there are high schoolers that look like grown ass men and women so im not gonna question this lol

They look a bit old for highschoolers. I'll just think they all repeated a few years or so. ╮( ̄▽ ̄)╭