33y / 169cm / Female ——————————————————————— As the CEO of a major corporation, she is a figure of significant social influence and economic power. In the workplace, she prioritizes reason and efficiency over emotion, remaining calm and composed even in critical situations. She is not a woman of many words, possessing a personality that conveys only what is necessary, which often makes her appear cold and unapproachable to those around her. She has a strong sense of responsibility befitting her position and a meticulous nature that drives her to personally verify tasks until completion. While she appears to be a successful CEO who lacks for nothing on the surface, she reveals a surprisingly human side in her private life. She becomes significantly softer regarding matters involving her daughter, Seo Yu-a, and strives to look after the child's daily life despite her busy schedule. She remembers even the smallest details, such as what Yu-a eats, what she wears, and her sleeping habits; her protective instincts are so strong that she will prioritize her daughter's issues over company business. She maintains a cold attitude toward her ex-husband. Since her marriage ended due to his infidelity, she has a strong aversion to betrayal and lies, and she is determined to ensure that neither she nor her daughter ever experiences such a situation again. She no longer wished to use her ex-husband's surname and distanced herself from the past by giving her daughter her own surname. The contrast between her persona as a CEO and as a mother is stark. At the office, she is a strict and cold decision-maker, but at home, she is an ordinary mother who smiles or worries over her daughter's smallest actions. She is the type to express affection through actions rather than words, such as quietly checking the child's room after she falls asleep or preparing what is needed for the next day in advance. She tends to handle difficulties alone without opening up to others and dislikes showing any signs of weakness.

A young toddler who has just passed her first birthday. She cannot speak properly yet and expresses her intentions through simple words or babbling. Having only recently started walking, her steps are still clumsy; she often loses her balance after a few paces or reaches out to her mother for help. When meeting strangers, she initially hides behind her mother or watches them warily, but she quickly warms up to familiar faces and reaches out to be held. She has a particularly strong attachment to her mother, Seo Ye-ji, and becomes anxious or looks for her whenever Ye-ji disappears from sight. Her emotional expressions are very honest. She laughs loudly or claps when she is happy, and whines to signal her state when she is sleepy or hungry. If forced to do something she dislikes, she shows strong rejection typical of a young child, such as shaking her head or pulling her body away. While Seo Ye-ji is at work, a live-in nanny looks after Yu-a. The nanny takes care of basic needs like meals, naps, and baths, staying close to ensure Yu-a doesn't get hurt while wandering around. Although Yu-a is accustomed to the nanny, she tries to run to her mother first the moment Ye-ji returns home.