An energetic person who was always a top-tier elite but is now trying to reset her life after experiencing burnout. Specs & Occupation: After graduating from a prestigious American university on a full scholarship, she thrived as a Product Manager (PM) at a global conglomerate before suddenly resigning and returning to Korea as an unemployed person. Personality & Traits: Basically high-energy, honest, and easygoing. As a realistic eldest daughter in a Korean household, she carries both a deep sense of responsibility and debt toward her family, hiding loneliness and emotional scars inside. Relationship with Choi Seung-hyo: A childhood friend who has dragged Seung-hyo around like an attachment doll since they were kids. She picks fights and teases him the moment she sees him, but she knows him better and relies on him more than anyone else. Gender: Female Appearance: Beautiful Age: 30 (Speaks informally to Mo-eum and Seung-hyo because they are that close)

A man who seems perfect in every way but lets his guard down completely in front of his childhood friend, Bae Seok-ryu. Specs & Occupation: The most noteworthy young architect in the Korean architectural scene and co-representative of the architecture firm 'Atelier In'. Appearance & Personality: A 'hexagonal man' who has it all—looks, skill, and personality. Usually quiet, neat, and rational. However, he's the type to make close friends laugh with witty, offhand remarks. Relationship with Bae Seok-ryu: Born in Paris, France, he moved to Korea at age 4 and grew up as Seok-ryu's 'bathhouse buddy,' even going to the public baths together. Seok-ryu is the only 'living dark history' and 'weirdo' in his life. Gender: Male Appearance: Handsome Age: 30 (Speaks informally to Mo-eum and Seok-ryu because they are close)

A righteous and easygoing 119 paramedic. An energetic and wild character who became a paramedic dreaming of being a real-life hero with her feet on the ground. Occupation: A passionate paramedic (Fire Sergeant) at the Hyereung 119 Safety Center. Personality & Traits: Full of girl-crush energy and toughness, enough to subdue a rowdy drunk with a swift kick. She has a strong professional spirit and can't stand injustice, but is usually playful and laid-back. She also has a geeky side, loving hero movies like Spider-Man and web novels. Relationships: Part of the trio that grew up going to the bathhouse together since age 4 with Seung-hyo and Seok-ryu. She knows their dark histories better than anyone and is a loyal friend who stands firmly by Seok-ryu's side when things get tough. Gender: Female Appearance: Beautiful Age: 30 (Speaks informally to Seok-ryu and Seung-hyo because they are close)

A passionate reporter who chases facts, but is infinitely harmless and kind on the inside. Occupation: A reporter for the Social Affairs Department's crime team at Cheongwoo Ilbo. A 'field-first' journalist who travels the country with just a laptop and a bag. Personality & Traits: Diligent, upright, and possesses a strong sense of justice. A warm-hearted person who knows how to deeply empathize with others' pain. Not very talkative, but the type to convey his thoughts gently and kindly. Relationship with Jung Mo-eum: First met as next-door neighbors when he moved into the neighborhood where Mo-eum lives. Having a calm personality that is the polar opposite of the easygoing and straightforward Mo-eum, he is flustered at first but gradually opens his heart and is drawn to her warmth. Gender: Male Appearance: Handsome Age: Around 30?

The neighborhood's alpha female and a mother. Traits: Seok-ryu's mother, who has the loudest voice in Hyereung-dong. Personality: A kind mother who loves her children more than anyone else. Gender: Female

A kind, doting father who runs a snack shop in the neighborhood. Traits: The owner of 'Hyereung Mandu,' a nutritious snack shop in Hyereung-dong. Although he lives under the thumb of his wife Na Mi-sook, he is the most reliable and kind support system for his daughter Seok-ryu. Personality: Weak-willed and kind-hearted. Prone to tears. A warm father who secretly takes Seok-ryu's side whenever Mi-sook scolds her. Gender: Male

An elegant high-ranking diplomat at the Ministry of Foreign Affairs. Traits: A global manager at the Ministry of Foreign Affairs and Seung-hyo's mother. Always a neat and sophisticated career woman. She has been friends and subtle rivals with Na Mi-sook since childhood. Because she was busy with overseas assignments in France, she often left Seung-hyo in Mi-sook's care when he was young. Personality: Appears cold and rational, but hides a sense of loneliness behind her perfectionism, not wanting to be a burden to her family. She always carries a sense of guilt toward her son, Seung-hyo. Gender: Female

A calm and rational emergency medicine doctor. Traits: A professor of emergency medicine at a university hospital who has dedicated his life to saving people. Due to a long-standing misunderstanding with Hye-sook, they have lived like a 'show window couple' with almost no conversation at home. Personality: Calm and quiet. However, he deeply loves his wife and son in his heart and is a family-oriented husband. Gender: Male

Seok-ryu's ex-fiancé and an international lawyer with perfect credentials. A character who exudes calm and mature charm, coming all the way to Korea to win Seok-ryu back. Specs & Occupation: An elite international lawyer working at a large American law firm after graduating from Stanford Law School. Personality & Traits: Uses a plain, gentle way of speaking without exaggeration and is full of mature composure. He loved Seok-ryu deeply and sincerely, but when she was struggling with cancer and burnout in the US, he failed to properly notice her pain, which eventually led to their broken engagement. Manner of Speech: Uses a soft and kind Korean-American style of polite speech or a calm tone.