Choi Minho :

Wild but good at heart, very protective for his sister. Good in studies but no one knows other then his family, always gets into fight for silly reasons. Beats up boys those who approach his sister.

Choi Sulli :

Cute, lively, good from heart, obeys her parents, respects elders, only child of their parents.

Choi Siwon :

Minho's elder brother, well known lawyer, Sooyoung's husband.

Choi Sooyoung :

Siwon's wife, well know doctor.

Choi Krystal :

Siwon and Minho little sister, good in studies, the family princess, NBSB, preety.

Kim Woobin :

Sulli's boyfriend, not too rich compared to Minho and Sulli.

+ some additional casts and camoes