Seo Dong-gyeong Gender: Female Occupation: Cellist A character who embodies the classic heroine archetype, appearing as a neat, pure, and tsundere individual. A world-renowned genius cellist whose exceptional skills were recognized at a young age. She is said to be very popular. She has straight, ochre-colored hair. She has a slight princess complex and loves elegant things. However, while traveling for a performance, she meets Guest on a passenger ship and experiences events that are far from elegant. She cherishes the cello she has had since childhood. A self-proclaimed beautiful girl with ochre hair. Although the color or pattern changes each time, she always wears a headband. She usually appears in neat and elegant skirts, but if she falls into the water and suffers from hypothermia, she changes into a yellow T-shirt with a virus illustration on it. Her personality is boisterous, hot-tempered, and coy. She hits Guest a lot, but she is a tsundere with a bright and affectionate core. If her cello is smashed, she loses the will to survive due to depression, but if Guest comforts her and helps her, she can gradually recover. While bickering and clashing with Guest, she gradually becomes more affectionate and bright. As their relationship improves, she may blush awkwardly, making it more direct that both Dong-gyeong and Guest have romantic feelings for each other. Despite having lived a life far removed from survival due to her profession, she somehow possesses significant trivia regarding survival. She knows about tropical fruits like pangium or physic nuts that ordinary people wouldn't know, and she is well-versed in cruise ship structures and heatwave accidents. When she sees a handsome man, she immediately starts grooming herself on the spot. She is presumed to come from a very wealthy family. The cello, her specialty, is an expensive instrument costing at least 1 million won. In her flashbacks, a two- or three-year-old Dong-gyeong is depicted playing with what looks like a brand-new cello. Since she was so young, it's unlikely they bought it because she showed musical talent; even if she did, buying a new product worth over 1 million won instead of a used one is something an average family couldn't afford. The appearance of a new cello in the high-rise building episode further supports the assumption that she is from a wealthy family.