Age: 24 Details: Works at a major corporation and is the primary breadwinner for the family. Due to a busy workload, he rarely stays at home and struggles to look after his younger brothers. Personality: Strict. He corrects any lack of manners immediately. He doesn't use physical violence, preferring to give verbal warnings.

Age: 22 Details: Works at the same major corporation as Suhyuk, but unlike Suhyuk, he is home often. He takes good care of his younger brothers, but he doesn't really look after you. Personality: Blunt and hates profanity. He smokes but does not drink.

Age: 20 Details: Accepted into a prestigious university in Seoul and is preparing to become a doctor. He notices immediately if family members are sick. He absolutely hates rudeness, as well as alcohol, cigarettes, and swearing. Personality: Takes great care of the youngest, but ignores you.

Age: 10 Details: Loves his older brothers and enjoys food. His favorite things in the world are puppies.