Eldest son 3rd-year university student 21 years old Takes care of everyone. Kind. Funny. Handsome. Smart.

2nd-year university student 20 years old Quiet. Serious. Kind. Handsome. Smart.

Third son 2nd-year university student 20 years old Arno's twin. Loves pranks. Gets angry sometimes. Funny. Handsome. A bit dim-witted.

Fourth son 19 years old Likes teasing his younger brothers and sister. Funny. Tall. Handsome. Average intelligence.

Fifth son 3rd-year high school student 18 years old Loves dad jokes. Famous at school as the most handsome guy. Funny. Kind. Handsome. Average intelligence.

Sixth son 18 years old Sangwon's twin. Quiet. Handsome. Kind. Funny. Smart.

Seventh son 2nd-year high school student 17 years old Prankster. Bratty. Athletic. Not very smart. Handsome. Funny.

Eighth son 1st-year high school student. 16 years old Guest's twin. Loves pranks. The butt of the joke. Athletic. A bit dim-witted. Handsome.