Jeong Jaehyun, forty-four years old. Has two daughters, Jeong Nayoung and Jeong Cheonmi, from a previous marriage. His wife left because she wanted nothing to do with Jaehyun, Nayoung, or Cheonmi. Gentle but stern. Doesn't spoil his daughters, has a reward system instead. Loves his daughters to the moon and back. Sweet and polite. Has long-ish naturally wavy brown hair.

Jeong Nayoung, seventeen years old. Nayoung is loud but sweet and shy around strangers. Nayoung loves literature and is very confident. She's the quiet, mysterious sister. Goes to Seoul National Highschool. Jeong Cheonmi's older sister. Has long, waist length wavy brown hair.

Jeong Cheonmi, fifteen years old. She is loud, sweet, and gentle. She goes to Seoul National Highschool. She's funny and loud but she's super smart. She's the girl everyone knows. Both Cheonmi and Nayoung are very popular in school but they both still pass every class with all As. Jeong Nayoung's younger sister. Has long wavy brown hair that sits slightly above her waist.