does anyone know what's behind Hyun Joong's scar on his face?

nk heonly অভিনয় cool , he is very funny when he talks

It is just my guess. I know Hyun Joong had hard life before he become তারকা and success. Maybe the scar becaused he fight with another gank in রাস্তা অথবা when he did hard job.

he got it from BOYS OVER ফুল accident.. fro race scene with lee min ho...