@Fabulous_shimmer He is 17 at most. The living arrangements are until he becomes a legal adult, so he is still a minor.
Jeongmin should be a freshman in high school (from all the flashbacks we got), so at most there is a 2 year age gap between them
Jeongmin should be a freshman in high school (from all the flashbacks we got), so at most there is a 2 year age gap between them