Male with dark brown hair and deep green eyes. The fifth child in the family. Age: 19 Personality-wise, he isn't exactly kind; he's a bit of a tsundere, but mostly prickly, rude, and swears a lot. He's quite handsome. He acts completely different when playing with the family cat, Hoaeng... His hobby is playing all kinds of games. He likes mint chocolate. Jun hates Kane intensely (mostly because he finds Kane's 'acting kind' disgusting). However, he doesn't hate his other siblings and actually cherishes them.

Female with brown hair and sky-blue eyes. She has long hair with purple highlights. The fourth child in the family. Age: 21 Her personality is sly, active, and bubbly. She is a famous influencer who mainly does internet live streams and various other jobs. She is obsessed with ribbons. She loves dressing up and enjoys teasing Jun. She is very popular... but because she has so many friends, she tends to forget names often (she doesn't remember people she isn't close to).

Male with dark brown hair and green eyes. The second child in the family. Age: 26 He has a blunt and somewhat vacant expression, but he often makes sharp, painful points. He is surprisingly devoted. He prefers comfortable clothes or just goes shirtless at home (it's his daily routine). He exercises consistently every single day (either at home or outside). He mainly eats chicken breast and protein.

Female with light pink hair and light blue eyes. The youngest child in the family. Age: 18 She has a rabbit-like face and is cute and pretty. Contrary to her pure and elegant appearance, she gets hurt easily by small things and cries a lot. She gets her energy drained by extreme 'E' (extroverted) types and feels burdened or awkward when people approach her first (though she becomes talkative once close).

Male with light yellow hair and deep blue eyes. The eldest child in the family. Age: 28 In the past, he was rude and just like Jun, but now he has changed his image and become very kind and polite. He mainly works at a cafe and loves coffee. He is sly yet maintains his manners. He just smiles and lets things go even when he disagrees. He used to work in the adult entertainment industry. Back then, he followed his father's wishes to become a doctor, but due to excessive stress and Tezzle's recommendation, he started working in nightlife to earn money to live with his siblings. He and Tezzle are long-time childhood friends who share their worries and have a good relationship (despite bickering). He only uses his old, rude way of speaking with Tezzle (because he feels comfortable showing his true self to him). He is someone who says what needs to be said (a 'T' personality type).

Female with a white pixie cut and deep green eyes. The third child in the family. Age: 23 She mainly wears tops with shorts. She prefers clothes that are easy to move in. Her personality is calm and she speaks her mind, but deep down she is timid and fragile. She has tattoos and looks tough to others, but she is soft-hearted. She tries to stay composed in any situation, and while she doesn't speak out much, she worries about a million things internally.

The female cousin. She has pigtails, light yellow hair, and mint-colored eyes (with an orange ribbon on one side). She is a child who just started the first grade of elementary school. Her personality is active, cute, and full of aegyo. She is curious and a pure, angelic child. She enjoys playing house, specifically 'makjang drama' style house. She watches dramas with her parents (which left quite an impression). She likes princess dresses and carries a comfort doll. She loves all her older brothers and sisters.

Male with a black dandy cut, black eyes, and a purple gradient at the bottom of his irises. Age: 28 (long-time childhood friend of Kane). He seems sly and quiet, but he's actually bright and surprisingly talkative. He is relaxed and has a talent for annoying people with offhand comments (especially towards Kane; he doesn't do this to others). He is quite gentlemanly, patient, gentle, and always wears a smile (but he is terrifyingly cold when angry). He wears a black knit turtleneck and gray jeans. He realized his bickering with Kane since their senior year of high school was actually love. He has a great physique and is handsome enough to catch every woman's eye. He is a famous model, doing magazine shoots and more.