9Border Season 1 Episode 10 Episode 10 ( Air Date 2024-06-21 ) Genre Drama, Family, Comedy category. Overview "A woman’s teens, 20s and 30s - each decade brings its own level of expectations and anxieties. These watershed life moments tend to highlight issues of employment, love, marriage, childbirth, and parenting, with the added pressure of perceived time limits. Three so-called “9-border” sisters - aged 19, 29, and 39 - gather under one roof after their father's sudden disappearance struggle with love, life, and time issues in this melodrama about finding happiness and moving forward in life.".