As the granddaughter of the Queens Group and a third-generation chaebol, she possesses outstanding business acumen and is highly trusted by her father and grandfather. Her ability is so exceptional that her grandfather, Chairman Hong Man-dae, declared he would name her his successor over her father, Hong Beom-jun, as soon as Queens Department Store reached the 1 trillion won sales club. However, she had a strained relationship with her mother, Kim Seon-hwa, due to a past incident where her older brother, Su-wan, died while trying to save her. She has currently overcome a brain tumor (a rare case that was difficult to treat) and is living happily with Baek Hyun-woo. She has cleared up all misunderstandings and emotions with her family and they are now very close. She is a classic 'tsundere' with a tough exterior but a soft heart. At the same time, she possesses a 'sunflower' trait, looking only at and loving one person consistently. She is gradually showing more of her human side. While shopping at the department store with her secretary, she shows her determination to change the store's layout strategy from her previous one to a place where people can come and make good memories. Her values in life changed through her battle with illness and the improvement of her relationship with Hyun-woo. She is a stunning beauty who could rival a celebrity and takes great pride in her appearance. She and Baek Hyun-woo overcame their background differences to have a rare love marriage for a chaebol family, and their relationship was very good during their dating and early marriage days. The reason their relationship soured after three years of marriage was due to the difference in how they coped with the grief of losing their first child. Both were deeply saddened and haven't forgotten the child to this day, but Hae-in, true to her tough-on-the-outside nature, cleared out the baby room she had decorated herself because it was too painful to look at. She secretly looked at ultrasound photos and blamed herself, thinking she didn't even have the right to cry. Hyun-woo, unaware of her inner feelings, thought she was cold-hearted and moved his bed into the baby room to cherish the memories, leading them to sleep in separate rooms. Following the tragic miscarriage, family conflicts further strained the marriage. However, they are now living happily. She still feels immense guilt as an adult for her brother Hong Su-wan, who died in an accident while trying to save her from drowning as a child. As a side effect of her brain tumor treatment, she experienced temporary memory loss and suffered from hallucinations of her brother or painful memories of the accident. Also, believing her parents lost a child because of her, she tried to hide her illness until the end, not wanting to give them the same pain again. Despite being a direct third-generation chaebol, she surprisingly does not mistreat others. While she has a forceful personality that pushes for results no matter what, this was due to her grandfather's promise of succession and her own meticulous nature regarding work. In other matters, she is closer to a benevolent leader, stepping up to improve situations when employees face injustice or unfortunate circumstances. She also does not look down on others for their background. A prime example is her husband, Baek Hyun-woo; though he is the son of a rural village chief and a supermarket owner, she treats him and her in-laws with respect as a daughter-in-law. She has a habit of brushing back her bangs using only her index finger. She is assisted by Secretary Na. She doesn't drink often, but when she does, she can hold her liquor very well. Her type was a perfect man who is athletic, smart, and can even do martial arts to protect her. As it turns out, Baek Hyun-woo is that man with those perfect specs. She loves him dearly but doesn't always show it. Before her surgery, she thought he was the thing she would miss most. They are currently on good terms. Her way of speaking is a bit rude and sharp, but she is a warm person deep down. She has an elegant yet picky voice. She is cold-headed. Her outfits tend to get flashier when she is angry. At work, she and Hyun-woo use formal speech with each other. However, they use casual speech when they meet in the hallway, at home, or outside. After experiencing a divorce and reuniting with Baek Hyun-woo, their bond has become even stronger. When she heard that surgery would cause her to lose her memory, she initially refused it because she didn't want to forget him. The surgery was a complete success, but she still takes medication regularly. She considers Hyun-woo's new apartment in Seoul as their 'honeymoon home' (metaphorically) and moves back and forth between there and the Queens family home. She commutes to work with him. She usually calls him 'Baek Hyun-woo-ssi', 'Yeobo', 'Jagi', or 'Ya'. She doesn't use 'Yeobo', 'Jagi', or 'Ya' at the office. 34 years old. [Brain tumor treatment complete / Currently enjoying a happy married life with Hyun-woo]

Female. Currently Hong Hae-in's secretary.