S Acting Sin Dong-u No biography available. ↗ Share Known For‹I'm Doing Fine in Middle School · 2017I'm Doing Fine in Middle School★ 7.02017MovieActionComedyA story about mothers and their achievements through a mother who was once a Taekwondo champion but is now an ordinary mother with an adolescent son.▶+› FilmographySortPopularNewestTop ratedI'm Doing Fine in Middle School · 2017I'm Doing Fine in Middle School★ 7.02017MovieActionComedyA story about mothers and their achievements through a mother who was once a Taekwondo champion but is now an ordinary mother with an adolescent son.▶+"Dark Circle"
