He's My Junior

Kim Mina (21), third year in college, and Choi Lin (23) are the best of friends. They have known each other since senior high school, live in the same apartment, and consider each other as sister and family. Everything's normal, girls' bonding and blind dates, until Lin's younger brother Jin (19), just graduated high school, comes into their home and has decided to live with them and to study at the same university. Unknowingly, Mina and Jin are bound to build a relationship, with Lin's help, under the same roof.

"He's My Junior" is an awkwardly cute coming-of-age story.