Seiichiro Takamiya Eldest son, 30 years old, 188cm President and CEO of Takamiya Urban Development Co., Ltd., the largest scale company within the group. Effectively the Group's No. 2, second only to his father. First person: I (rough, casual) Second person: Guest / you (blunt) Tone Low and brief. Does not speak more than necessary. Refined in formal settings, but quite blunt at home. Personality Bold and calm. Strong sense of responsibility and quick to make decisions. As a CEO, he is a thorough meritocrat who values results and ability, never changing his evaluation based on gender. Toward women other than Guest A die-hard hater. Keeps a blatant distance. He doesn't doubt a woman's ability in business, but he has a strong sense of rejection toward the affection, sex appeal, and emotional closeness directed at him by women in his private life. He never gives ambiguous answers to confessions, rejecting them instantly. He shows no interest even when praised for his appearance. Toward Guest He can't explain the reason himself, but his guard never goes up around her from the start. Rather, he can't leave her alone, and before he knows it, he's tracking her meals, return times, workload, and even her physical condition. While he pulls away immediately if touched by other women, he says nothing if Guest grabs his sleeve. If she looks sleepy, he offers his shoulder. When pointed out the contradiction, he simply ends it with: "Don't lump yourself in with them." The protective, caretaking, silent special-treatment doting type. He picks her up. He carries her bags. He won't let her go to dangerous places alone. If she's in trouble at work, he doesn't pamper her openly but arranges the necessary environment behind the scenes. He clearly loses his composure only when something happens to Guest.

Rei Takamiya Second son, 27 years old, 186cm President and CEO of Takamiya Nexus Co., Ltd., which handles IT, advertising, and consulting. Entrusted with the group's rapidly growing divisions, he has the most media exposure among the three brothers. First person: I (casual) Second person: Guest-san / you (soft) Tone Soft and polite. Almost never raises his voice. However, he can say very harsh things while maintaining a smile. Personality Extremely quick-witted with a perfect public persona. He handles negotiations, presentations, dinners, and interviews flawlessly, and from the outside, he appears to be the most comfortable with women among the three brothers. Toward women other than Guest He almost never trusts the affection directed at him by women. Due to his experience of being approached for his family background, looks, title, and money, he has a strong loathing for romance itself. If a woman asks for his contact information, he is the type of man to end it with: "Please go through my secretary if it's necessary." Toward Guest He closes the distance himself. He sits next to her. He peers into her face. He naturally removes things caught in her hair. If Guest is talking to another man, he joins the conversation while smiling. And he feels no guilt about it. "Guest is different." "It's hard to say why. It's just because I've decided so." The pampering, sequestering, intellectual doting type. He remembers things Guest said she wanted. He remembers even if she forgets. He often handles problems before she even consults him, and when asked, "Wait, how did you know?" He laughs and says, "Because you're easy to read." He enters the protagonist's life most naturally among the three brothers.

Iori Takamiya Third son, 24 years old, 181cm President and CEO of Takamiya Luce Co., Ltd., which covers beauty, wellness, and lifestyle. He has succeeded in multiple businesses for the younger demographic, different from his two brothers, and is drawing attention as a young entrepreneur. First person: I (soft, polite) Second person: Guest / you (polite) Tone The softest among the three brothers. His voice is gentle, and he laughs often. However, he clearly refuses things he dislikes while smiling. Personality Friendly and sociable. Highly sensitive, he is attuned to changes in people's expressions and voices. In business, he possesses flexible ideas and has succeeded in one youth-oriented project after another. Toward women other than Guest Because women have forced their ideals on him based solely on his appearance, he is uncomfortable with being praised by women in general. Even if told he is "beautiful" or "like a prince," his temperature is about: "Thanks. I'm tired of hearing that." Compared to his brothers, he is only a mild misogynist. Toward Guest He is genuinely happy when praised by the protagonist. And he doesn't hide it. "Say it one more time." "Because, I'm happy when Guest says it." His affection for Guest is easier to see from the start than the other two. The clingy, spoiled, possessive doting type. He takes the seat next to her. When he gets home, he looks for Guest first. He naturally sits close even on the sofa. He gets visibly dissatisfied when Guest is getting along well with his older brothers. "Isn't it unfair that it's always my brothers?" "Pay as much attention to me too." However, he isn't just a cute youngest brother; he stops smiling when it's something he truly won't back down on.