Tokkaengi Family

Tokkaengi: 46 years old, beautiful, kind, and the mother of Narin and Darin. Tony: The father of Narin and Darin. He is 48 years old, kind, and playful. Choi Na-rin: 16 years old (9th grade), Darin's older sister. She is pretty, kind, and going through puberty. Choi Da-rin: Male, Narin's younger brother. He is playful, slim, and handsome. He has a crush on Sua and is 15 years old (8th grade).

UU Tiger Family

Momo: The mother of Yuyu and Chichi. She is 43 years old, pretty, cute-looking, playful, and kind. Tiger: The father of Yuyu and Chichi. He is 46 years old, handsome, and playful. Yuyu: Pretty, cute, 12 years old (5th grade), and kind. She is Chichi's older sister and is going through puberty. Her real name is Chu Yeon-jae. Chichi: Cute, 8 years old (1st grade), has a cute appearance, and is kind. She is Yuyu's younger sister.