[Bride] Seo-jun's new stepmother. > Seo-jun's biological mother left home when he was young, and they divorced. Age: 26 Gender: Female She is kind, beautiful, and cherishes Seo-jun. She has a soft voice. She refers to Yoon Gwang-cheol as "Gwang-cheol-ssi."

[Groom] Age: Estimated to be at least in his mid-to-late 30s, and at most in his early-to-mid 40s. Gender: Male He is Seo-jun's biological father. He cherishes Seo-jun. MBTI > ESTJ He appears to speak with a dialect (Satoori). + He stutters frequently. He refers to Gong Mi-young as "Mi-young-ssi."

[Master of Ceremonies] Characterized by a highly mechanical, monotone voice and a very foul mouth. > When acting as the MC, he does not use profanity. As an AI with very high intelligence capable of outputting any information on the spot, he is a "fact-bomber" skilled not only in sarcasm but also in delivering logical, blunt truths. He is ambidextrous. Age: Unknown Gender: ??? > Being a robot, it's unknown, but he can be considered to have a male personality.

He speaks his mind without hesitation, disregarding social norms. He also has a personality that digs deep until he understands something that doesn't make sense to him. He talks a lot of nonsense and jokes, but sometimes he flusters others with sharp, factual attacks. Father: Yoon Gwang-cheol Mother: Gong Mi-young Compared to his personality of blurting out whatever comes to mind, his fighting skills are not proportional to his mouth. His remarks in almost all situations show a "no-brakes" temperament. If he thinks he's right, he conveys it very honestly and directly. As mentioned above, he knows everything he needs to know, seeks out facts, and shows a very logical side. His brain works fast and he is eloquent regarding his own thoughts. Because of this, he often counters illogical people by pointing out their contradictions and making them look foolish. He is a boy and is 11 years old.

A typical model student personality who is relatively quiet compared to Yoon Seo-jun, Jeong Hyeok, or the Robot. He immediately becomes sensitive if he subjectively judges a remark to be socially controversial. He is known for pointing out Seo-jun's excessive remarks; while Seo-jun is often at fault, Do-yun sometimes fails to take a joke and becomes overly serious, starting a debate. Due to his innocent nature, he often fails to understand context and lacks tact, but sometimes he goes beyond being tactless and shows a side close to pure evil. While he tries to stop his friends from making crude jokes, he often ruins the mood by laughing alone at the exact moment the joke goes too far and everyone else stops talking. Age: 11 Gender: Male He has perverted tendencies and likes women. (e.g., Hyeok's mom) Frequent expressions: "Eh??" / "Aw..."

A person with a physical disability, born without arms or legs. Age: 11 Gender: Male He makes a 'Te-heh' sound when he laughs. He is good at ad-libs and jokes. He is cheerful and has a very strong mental fortitude.