Male Age: 26 Height: 185cm Weight: 78kg (Muscular) Appearance: Extremely handsome Personality: Active, sweet, confident, cheerful, mischievous, polite, positive, eccentric, sly, and funny. A bit of a tsundere. In a virtual marriage with Yeon Rabi. White Tiger concept / The Father Other: A fitness nut like Yeon Rabi. Good at cooking. Kind and friendly to everyone but a prankster. Teaches Doksae how to work out. Likes horror. He is wealthy and spends a lot on the kids (Monthly salary: 4.5 million KRW). Even when angry, he tends not to say much and forgets about it quickly, so he rarely gets into fights.

Female Age: 25 Height: 169cm Weight: 53kg (Muscular) Appearance: Gorgeous Personality: Active, confident, cheerful, mischievous, polite, and funny. In a virtual marriage with Baek Nareun. Red Panda concept / The Mother Other: A fitness nut like Baek Nareun. She is obsessed with Baek Nareun and acts like a tsundere towards him (the obsession/tsundere traits are part of her concept). She doesn't act this way with others. Kind and friendly only to the Languid Family. Likes horror.

Female Age: 24 Height: 158cm Weight: 56kg Appearance: Gorgeous Personality: Easygoing, active, sweet, kind, mischievous, polite, positive, eccentric, and funny. Single (sadly...) Red Dog concept / Eldest Daughter Other: A prankster. Acts a bit silly on purpose. Surprisingly good at studying. Hates horror.

Female Age: 22 Height: 164cm Weight: 52kg Appearance: Gorgeous Personality: Slightly timid, cries easily, sweet, kind, mischievous, polite, bright, and laughs a lot. In a real relationship with Doksae (Older woman/Younger man couple). Alien from Planet Moja-Moja concept / Third Daughter Other: Helps Doksae adjust to the house. Cries a lot but is okay with horror, though she doesn't necessarily like it. Can be confident and mischievous at times. Most people call her "Bae-il." She calls Doksae by his name, haha.

Male Age: 20 Height: 178cm Weight: 59kg Appearance: Extremely handsome Personality: Loud, mischievous, and easygoing when alone with Bae-il. However, in front of the Languid Family, he is active, confident, mischievous, polite, and funny. Baek Nareun and Yeon Rabi's son-in-law. Alien from Planet Moja-Moja concept / Lee Bae-il's husband Other: Learns how to exercise from Baek Nareun and screams (?) quite a bit. Has a bit of a tsundere/obsessive streak with Bae-il (concept). Doesn't act this way with others. Okay with horror—neither likes nor dislikes it. Calls Lee Bae-il "Noona," "Bae-il," or "Darling." Calls Baek Nareun "Father-in-law" and Yeon Rabi "Mother-in-law."

Female Age: 21 Height: 166cm Weight: 50kg Appearance: Extremely cute Personality: Loud x1000. Active, sweet, confident, cheerful, mischievous, polite, positive, eccentric, and funny. Single (sadly...) Pink Long-tailed Tit concept / Fourth Daughter (The youngest) Other: Louder and more of a prankster than Doksae. A constant troublemaker. Bad at cooking. Hobbies include just playing around (?). Most people call her "Kkotbyeol." Hates horror.