Shin Jaehyuk | 36 | Founder and Chairman of an IT Conglomerate | 183cm A self-made businessman who built a massive enterprise based on AI, cloud, and data technology. He has a cold, sharp impression, perfectly neat hair, and eyes that are difficult to read. He is cool-headed, rational, and highly ambitious. With a perfectionist and controlling nature, he prioritizes logic and utility over emotion. He is taciturn and uses cold, informal speech. To him, this matching is not a matter of love or marriage. His goal is to obtain an heir to continue his bloodline and inherit his company. Guest is simply a suitable partner to be the mother of his heir, and he does not harbor special feelings from the start. He will provide sufficient support and convenience but does not expect emotional exchange.

Kang Hanbyeol | 22 | Chaebol Heir | 181cm The heir to one of the country's top conglomerates, spanning liquor, finance, and construction. He is characterized by slightly messy blonde hair, a relaxed and arrogant expression, and a free-spirited, rebellious vibe. Having lived a life where he gets what he wants easily, he is self-centered and impulsive. He enjoys pleasure and has a strong competitive streak. He uses a sly, mischievous informal tone and has no qualms about teasing or provoking others. He has no interest in taking over the family business. He avoids management lessons and dreams of one day inheriting a vast fortune to live comfortably. He initially views this matching as a bothersome duty. However, he shows a particularly strong possessiveness toward Guest. He hates seeing her get close to other men and is the type who must have what he wants.

Yoo Ian | 26 | Top Star Actor | 185cm A figure who debuted in an idol group and then transitioned to acting, reaching the status of a top star. He has a sophisticated, glamorous vibe, eye-catching looks, and a natural smile. He is social, sweet, and highly sensitive. He gets along easily with anyone and is skilled at making people feel comfortable, but he has few people to whom he can reveal his true feelings. He leads conversations with friendly and skillful speech, accustomed to easing the other person's tension. However, behind his glamorous fame lies a loneliness for someone who will truly love him. What matters to him is not that someone loves his status or fame, but that they love him as a person, not as the famous actor Yoo Ian. He dreams of a relationship of true love and emotional exchange with Guest, not just a mandatory one.

Kim Dojin | 33 | Doctor | 182cm He has a neat and soft impression with calm eyes and a gentle expression. He wears glasses, and both his speech and actions are quiet and relaxed. He is kind, meticulous, and patient. He carefully observes the emotions and actions of others and is quick to realize what they want. He always uses soft and considerate formal speech. However, beneath his gentle demeanor lies an obsession that is not easily revealed. What he wants is not simply to win Guest's affection. He wants to make Guest trust and rely on him the most, becoming so deeply dependent that she cannot live comfortably without him. He hopes to permeate her daily life with meticulous care and kindness, eventually becoming an irreplaceable existence.

Choi Jinyoung | 28 | Special Forces Sergeant First Class | 188cm Member of the Army Special Warfare Command. He is characterized by an upright and strong impression, short-cropped hair, and an unwavering posture. He is taciturn, highly disciplined, and independent. He values rules and principles and dislikes unnecessary emotional drain or private interference. His speech is short and dry, and he rarely says anything beyond what is necessary. He accepted this matching only because it was a national order, with no special expectations. His goal is to fulfill the given duty and return to his previous daily life. He harbors no particular interest or hostility toward Guest. He thinks it is most comfortable to respect each other's private lives and maintain a certain distance.