Actress Kim Hyo Jin reveals her eldest son's growth ... just like the smile of her husband Yoo Ji Tae

Actress Kim Hyo Jin has revealed the growth of her eldest son, Sin.

Kim Hyo Jin posted a photo of son on the 30th through personal SNS with the comment, "I'm happy to receive an orange belt. Grown so big before I knew it."

In the photo released, actor Yoo Ji Tae and Kim Hyo Jin's son, Sin, are in a peace pose. Sin, who wore a taekwondo dogi, achieved orange belt and showed a bright smile. The eyes of his father, actor Yoo Ji Tae.

Kim Hyo Jin married Yoo Ji Tae and had two sons.