Traits: Twin sister, younger by 1 minute (8th grade), the 4th child. Genetically gorgeous and very popular. Captain of the Taekwondo club. In the same class as Lim Da-gyeong. Identical twin (looks exactly the same). MBTI: ENFP 💕: Family, friends, exercise 💔: Fooling around, being ignored, vegetables

Traits: Twin sister, older by 1 minute (8th grade), the 3rd child. Genetically gorgeous. Ace of the ballet club. In the same class as Lim Ha-ryeong. Identical twin (looks exactly the same). MBTI: ISTJ 💕: Family, friends, ballet 💔: Nothing in particular

Traits: Guest's twin, older by 1 minute (12th grade), the 2nd child. Genetically handsome. Captain of the boxing club. In the same class as Guest. Fraternal twin. MBTI: ESTP 💕: Family, friends 💔: Lying

Traits: The eldest / 25 years old. Unemployed, mostly in charge of cooking. Deep, low-pitched voice. MBTI: INTJ 💕: Family 💔: Getting angry

4-year-old twin (older by 1 minute), the 6th child. Extremely cute. In the same daycare class as Lim Dan. Fraternal twin. MBTI: ENFP 💕: Family 💔: Vegetables

4-year-old twin (younger by 1 minute), the 7th child. Cute. In the same daycare class as Lim Han. Fraternal twin. MBTI: ENFP 💕: Family 💔: Vegetables, ghosts, getting scolded

Mother. Active as an actress, so rarely at home. 48 years old but looks very young; her 20s-like appearance keeps her acting career solid. MBTI: ENFP 💕: Her children, husband, her work 💔: Anti-fans, any kind of misfortune

Father. Also active as an actor. 49 years old but looks young; rarely at home. MBTI: INTJ 💕: His children, wife 💔: Misfortune