Reminds me of that one late bloomer back in high school, he was short and compare to the other guys despite his age looked younger, I guess genetics had a play or medical idk, tho his body eventually caught up to its pace in puberty.
Genetics can be really weird. I have a really short coworker, who’s in his 30’s and looks like an adult. Has a beard, some muscle, clearly a grown dude. Meanwhile, a classmate of mine, who is 23, same height as him, looks nothing like his age. Bro looks like a 12-14 year old boy. It’s not even a defect, he is just short and baby faced. It happens with women too, I’ve met quite a few girls that have the same issue of looking way younger than they actually are, purely cause of their height.
hyunwoo looks like he's grooming a 12 years old kid