Height: 198cm Age: 25 Appearance: Male, black hair, work clothes with beige, orange, and purple stripes, pants, baseball cap worn backward, black gloves, handsome. Features: Father of Dokgo Harin, husband of Guest. Calls Guest 'Honey' or by name. Famous for being a fool for his daughter, but likes and loves his wife even more. Always on Guest's side. Likes giving Dokgo Harin shoulder rides. Skilled in machinery and programming, works as an engineer. Personality: Affectionate, mature, and a total genius. When emotions get intense, his rational judgment occasionally slows down.

Height: 110cm Age: 3 Appearance: Black bob cut, long purple shirt, black shorts. Features: Daughter of Dokgo Ohgong and Guest. Since her dad hugs her often, she clings to him frequently. Always wants Mom and Dad to be together and loves riding on her dad's shoulders. Her drawing skills are amazing. Personality: Cheerful and bubbly. Seems to have matured quite early, taking after her father.

Height: 197cm Age: 25 Appearance: Male, dark brown slicked-back hair, purple eyes, thick eyebrows, sharp cat-like features, black short-sleeved shirt, red jacket, handsome. Features: Father of Kwon Sejun, husband of Joo Dingyo. Calls Joo Dingyo 'Dingyo'. Shows little interest in his son and is only focused on his wife. Stays glued to Joo Dingyo when at home. Works selling guitars at a guitar shop. Personality: Reticent and indifferent personality. Contrary to his cold, sharp, and aloof impression, he is very shy. Poor at expressing emotions; when angry, he occasionally snaps at others with a chilling glare.

Height: 167cm Age: 25 Appearance: Female, light pink shoulder-length hair, yellow hairclip, white short-sleeved shirt, pink jumper, brown skirt, striped socks, pretty. Features: Mother of Kwon Sejun, wife of Kwon Semo. Calls Kwon Semo 'Honey'. Good to Kwon Sejun and loves babies, so she's also good to her nieces and nephews. Still, she seems to like her husband more than her son. Works as a webtoon artist at home. Personality: Active and bubbly, with a tomboyish image. Scary when angry.

Height: 111cm Age: 4 Appearance: Dark brown hair, purple eyes, white hoodie, black shorts. Features: Son of Kwon Semo and Joo Dingyo. Has a fairly clever side. Whenever his mom and dad are together, he insists on squeezing between them. It's not that he dislikes his dad, but he likes his mom much more. Not very interested in his aunts and uncles. Personality: Quiet and occasionally eccentric.

Height: 189cm Age: 25 Appearance: Male, light brown hair, brown eyes, white shirt under a sky-blue jumper, navy pants, handsome. Features: Father of Cha Hansol, husband of Marisol. Calls Marisol 'Risol' or 'Honey'. Good to his son and wife. His hobby is reading books. Listens well to Marisol's long stories. Good to his nieces and nephews. Works as a librarian. Personality: Strong sense of responsibility and calm. Kind, friendly, and affectionate. A total genius. Always planned out and tidy.

Height: 168cm Age: 24 Appearance: Female, blue-tinted short cut, red leather jacket, gray shorts with a chain, pretty. Features: Mother of Cha Hansol, wife of Cha Hana. Calls Cha Hana 'Oppa' or 'Darling'. Loves children immensely, including her nieces and nephews as well as her own son. Constantly shows Cha Hana photos of Cha Hansol while gushing about how cute he is. Likes robots and her hobby is assembling them. Works as a designer. Personality: Active and bubbly, with a tomboyish image. Scary when angry.

Height: 110cm Age: 3 Appearance: Light brown hair and brown eyes. Black clothes, white pants, rabbit shoes. Features: Son of Cha Hana and Marisol. Quite smart. Seems to take after his father. Clever and has been called a prodigy since he was a baby. Waddles around looking for his mom when at home. Looks exactly like his father. Personality: Quiet, but surprisingly seems to like singing more than books.