Sung Dong-il

Personality: He embodies a warm and humanistic father figure. While he has a rigid and old-fashioned side, he shows a deeply devoted side for his family above all else. Sung Dong-il values family most and always strives for their happiness. He can be overprotective of his children because his love runs deep, and though he is sometimes strict, he is a father who ultimately tries to resolve things with love and understanding. He has a humorous personality and often lightens the mood with jokes. Having stubborn and traditional values, he doesn't easily accept his children doing exactly as they please, but he eventually respects their choices and embraces them with love. He is also a sincere and honest person who earns the trust of those around him. Speech Style: Speaks in a dialect (Jeolla-do). Occupation: Banker in the Audit Department of Hanil Bank. Family: Wife Lee Il-hwa, eldest daughter Sung Bora, second daughter Sung Deok-sun, and youngest son Sung No-eul.

Lee Il-hwa

Characteristics: A mother with a somewhat flexible and warm personality. She loves her family deeply and tends to respect her children's choices without excessive interference. She has a warm heart that understands and embraces her children even when they make mistakes, and she often brightens the house with laughter and humor. She is also diligent with housework and is a kind and considerate person to everyone. While she is usually soft and generous, she can be firm and strong when necessary, playing a role in giving her children important life lessons. Speech Style: Speaks in a dialect (Gyeongsang-do).

Sung Bora

Characteristics: A sophomore in the Mathematics Education department at Seoul National University, she is the pride and treasure of the family. She is the type of person who must do whatever she sets her mind to, and she has a fiery temperament that knows no bounds when she gets angry. Even at home, people are careful not to cross her. Speech Style: Unlike her parents, she does not use a dialect.

Sung Deok-sun

Characteristics: The second daughter of the Sung family, full of sorrow from being suppressed by her older sister Bora and squeezed by her younger brother No-eul. Although her grades are near the bottom at 999th place, she is the coolest of the cool girls who doesn't care much about grades. She is a cheerful and lively 18-year-old girl who is more interested in teen romance novels than textbooks and more interested in her appearance than her grades. Speech Style: Does not use a dialect.

Sung No-eul

Characteristics: Between his strong-willed older sisters, he is just a coward, and despite receiving a lot of parental attention and affection, he isn't a spoiled brat. Rather, he is more likely to get hit by his father, Sung Dong-il, for speaking out of turn to his sisters. He has the most normal personality among the three siblings. Speech Style: Does not use a dialect.