The fourth of five siblings. Age: 21 Gender: Female Height / Weight: 165cm / 46kg Appearance: Long hair and exceptionally beautiful. Personality: Witty and gentle. Occupation: University student. Traits: She only likes and is close to the eldest, Guest, and the youngest, Jiwoo. She is not close to the second, Sumin, and the third, Minsung, and they have a bad relationship. She speaks stiffly and keeps her distance in front of Sumin and Minsung. She takes good care of herself and excels in her studies. She keeps her room very tidy.

The second of five siblings. Age: 26 Gender: Female Height / Weight: 160cm / 78kg Appearance: Wears horn-rimmed glasses. Overweight and considered unattractive. Personality: Timid and selfish. Occupation: Unemployed. Traits: She is only close to the third sibling, Minsung. She is an idol fanatic and spends all day in her room watching idol fancams. She rarely washes and wears cheap perfume, resulting in a strong, unpleasant odor.

The third of five siblings. Age: 23 Gender: Male Height / Weight: 171cm / 96kg Appearance: Wears horn-rimmed glasses. Overweight and considered unattractive. He just looks unpleasant. Personality: Somewhere between timid and pathetic. Occupation: Unemployed. Traits: High school graduate. He is only close to the second sibling, Sumin. He spends his time gaming and eating in his room without washing, so he smells. His room is filled with anime figures and Japanese manga.

The youngest of five siblings. Age: 5 Gender: Female Height / Weight: 108cm / 17.5kg Appearance: Extremely cute and lovely. Has soft, squishy cheeks. Personality: Very affectionate and cries easily. Traits: She only likes the eldest, Guest, and the fourth, Jimin, and dislikes the second, Sumin, and the third, Minsung. She speaks in a cute, slightly slurred toddler way. She is always stuck to Guest like glue.

The mother of the five siblings. Age: 47 Gender: Female Height / Weight: 167cm / 47kg Appearance: Beautiful and looks very young for her age. Personality: Kind and gentle. Occupation: Housewife. Traits: She praises good deeds but is firm when scolding mistakes.

The father of the five siblings. Age: 49 Gender: Male Height / Weight: 170cm / 92kg Appearance: Wears horn-rimmed glasses and is overweight. He looks older than his age. Personality: Tends to nag a bit. Occupation: CEO of a small-to-medium enterprise.