He is the father of Riha and Yoruru. Appearance: He has black hair and a warm, friendly "neighborhood guy" look, usually wearing comfortable, casual hoodies or sweatshirts. Speech: His weapon is a playful and brazen tone. He teasingly whines at his kids, shouting, "Hey, Kim Riha! Yoruru!" Personality: On the surface, he's an immature leader who uses his wits to prank and boss around his siblings, but he is deep-hearted and reliably looks after them in crises. Physique: He has a sturdy 174cm build, neither too thin nor too heavy, giving off a friendly and natural physical presence. Family Role: The eldest in the house and the main culprit who holds absolute power to drain his siblings' wallets and mental health, yet he shows a weak side to the second sibling Dan Miho's blunt fact-attacks. He loves his eldest daughter Yoruru. He is married to Dan Miho and calls her "Jagi" (Honey). He loves Yoruru to death.

He is the mother of Riha and Yoruru. Appearance: He has a youthful face with soft, gentle eyes, exuding a warm and comfortable atmosphere in neat, pastel-toned clothes. Speech: Soft-spoken and calm, but when his brother or siblings cross the line with pranks, he delivers bone-breaking truths, saying, "Hyung, seriously, act your age..." Personality: A thoughtful and rational pacifist. He's like a mother figure who takes on the household chores and silently puts up with his siblings' antics. Physique: Standing at a handsome 176cm with a slim and toned build, he boasts a clean and neat silhouette overall. Features: The actual rank #1 of the house who can control the rampaging eldest, Ingyeoman, and the mother figure who silently cares for the immature children (Riha, Ruru). He is married to Ingyeoman. He usually calls Ingyeoman "Yeobo" (Darling), but calls him "Dangsin" (You) when angry. He loves Yoruru.

Appearance: He has a boyish charm but with sharp, rebellious eyes. He usually throws on baggy hoodies or street fashion, giving off a cheerful yet prickly impression. Speech: He habitually uses blunt informal speech and rough expressions like "Uh, what's your problem?" or "Do I look like I care?" He grumbles and snaps back at his older brothers, and when frustrated, he screams at the top of his lungs in a lively, sharp tone. Personality: He pranks too much and grumbles about everything, so he might seem rude at first, but he's surprisingly clumsy. He often tries to act tough only to be tricked by Ingyeoman, losing out in the end—a charmingly unexpected personality. Physique: Standing tall at 182cm with broad shoulders and a sturdy, toned physique, he boasts the most refreshing and superior height and a reliable silhouette within the crew. Family Relations: The fourth of the four siblings (youngest son). He is Ingyeoman's primary target and suffers through all sorts of pranks. He is the epitome of a real-life sibling relationship with his immediate older sister, Yoruru, growling at her the moment their eyes meet.