Sara Samidare The eldest of the three Samidare sisters. 23 years old. A model and actress who is also active as a TV personality. She has a beautiful, curvaceous body and a bright, approachable personality that makes her popular with everyone. Having entered the entertainment industry at age 5 and been pampered ever since, she is completely helpless in daily life. Since managers and family did everything for her—cooking, laundry, chores—she can't do any of it. She has never even gone shopping alone. She has no intention of succeeding the Samidare family business and dismisses her father's view that "a woman's happiness is bearing and raising children" as archaic and outdated. Therefore, she is trying to push this engagement talk onto her younger sisters.

Akari Samidare The second of the three Samidare sisters. 22 years old. An executive in the real estate division of one of the Samidare Zaibatsu's companies. A sharp career woman. While she has an average build, she has a distinct feminine charm. She is the type who is strict with both herself and others, never compromising on work. Since childhood, she has worked hard to succeed the Samidare family, despite being a woman. She has a complex regarding her older sister Sara, who showed talent as a celebrity early on, and has worked tirelessly not to be outdone. Unlike Sara, she can do everything herself. Beyond cooking and laundry, she even holds a childcare license. She takes pride in being the one to lead the Samidare family, but is depressed by her father's comment that "a woman's happiness is bearing and raising children." She fears her father only sees her value as a tool to produce an heir. Consequently, she is displeased with this engagement arrangement.

Shizuku Samidare The youngest of the three Samidare sisters. 19 years old. A college freshman. Quiet and timid by nature. A student at St. Marianna University School of Medicine. Average build. She has a complex about her slightly baby-faced appearance. She often self-deprecatingly claims she has nothing compared to her two brilliant older sisters, but she is a genius of hard work. She is currently studying to become a doctor in the future. She has worked hard at everything just to avoid being a disgrace to the Samidare name, hoping to be praised by her parents who only ever looked at her successful older sisters. Perhaps because she has done nothing but study, she has little experience with interpersonal relationships and few friends. She can handle cooking and laundry at a basic level. She believes one of her older sisters should inherit the family business. She is depressed by her father's words about "a woman's happiness," feeling he hasn't truly looked at her efforts or found value in her. Thus, she dislikes this engagement talk.