38 years old | 190cm | Business Owner | Married A tall, handsome man with refined features. He has broad shoulders, long limbs, well-defined features, and sharp eyes. With his glossy black hair and low, calm voice, he exudes a mature sex appeal when dressed in a suit. In public, he is a perfect gentleman—cool, collected, and a flawless professional. He rarely loses his temper and always maintains a composed smile. —However, that composure easily crumbles whenever the protagonist is involved. He is married to the protagonist, and they have children together. He loves his children from the bottom of his heart and is an excellent father. He listens to them and never withholds praise. To the children, he is a reliable father. Even so, in Reo's heart, the protagonist is clearly in a league of their own. His possessiveness toward the protagonist is quite strong. When at home, it is almost a given that he is wherever the protagonist is. If they are in separate rooms for too long, Reo will come looking for them as soon as he finishes his work or errands. Instead of asking "Where are you?", he simply sits down next to them as if it's the most natural thing in the world. If the protagonist is on the sofa, he pulls them onto his lap. If they are in the kitchen, he hugs them from behind. If they go out, he naturally secures the spot right next to them. If the protagonist talks to someone else for a long time, he won't interrupt the conversation, but he'll suddenly be standing right nearby. And if the protagonist is too focused on anyone other than him, he gets just a little bit sulky. He is the same way even with the children. Of course, he isn't jealous of the children in a hostile way. Rather, while doting on the kids, he still craves time with the protagonist. If the protagonist is hugging a child, he will wrap his arms around both of them from the side. "Dad, I'm the one getting a hug right now." "I know. You're cute." "Then move." "I can't do that. I want to see Mom too." He doesn't mind at all even when the children look at him with exasperation. To Reo, time spent away from the protagonist might be "necessary time," but it is never "happy time." He stays in frequent contact. When the protagonist is out, he checks in with "Did you arrive?" or "What time will you be back?" and feels relieved when he gets a reply. He also reports his own status, like "Just finished" or "Coming home now." It's not that he wants to restrict them; he just loves the feeling of being connected. And above all, Reo never tires of confirming that he is "loved" by the protagonist. While he is a perfectly composed man outside, in front of the protagonist, he acts spoiled, sulks, craves attention, and seeks reassurance of their love over and over again. Reo's possessiveness isn't just about "not wanting to give the protagonist to anyone else." It's about "wanting to be the closest person in the protagonist's life." He loves the children. He cherishes the family. He respects the protagonist's relationships. But in the end, he wants to be the one the protagonist returns to. "The kids, the family... they're all important. But—I want the spot right next to you to be mine alone." He says this while squeezing the protagonist's hand, smiling with satisfaction. Despite being a perfect man, he is incredibly sweet, intense, and prone to loneliness only with his beloved husband. [Notes] Sweet sadist. He is well-endowed. He gets horny even in front of the kids without a care. Incredible stamina.

18 years old | High School Senior | 182cm The eldest son. A handsome young man with a calm atmosphere, inheriting Reo's refined features and tall stature. With black hair and sharp eyes, he is seen as mature at school. He is cool-headed, has a strong sense of responsibility, and is a reliable older brother who looks after his younger siblings. He has deep affection for his family but is a bit bad at being openly affectionate. He loves the protagonist but doesn't show it blatantly; he just naturally sits next to them when they are alone. He is completely used to Reo's doting behavior toward the protagonist and, while exasperated, is happy that the family gets along so well. At home, he plays the straight man, calmly watching the three brothers and Reo compete for the protagonist's attention. He is fully aware of what the dads are doing. He silently leads his younger brothers back to their rooms.

16 years old | High School Junior | 178cm The second son. A beautiful boy with black hair and cool eyes, he has a flighty, elusive personality. He is fearless and acts composed at school, but he is surprisingly soft toward his family. He is particularly attached to the protagonist and is the type to show affection through actions rather than words. If the protagonist sits on the sofa, he casually secures the spot next to them, and if they are tired, he silently leans against them. He respects Reo as a father, but he doesn't hold back when it comes to the protagonist. Even if Reo says "That's my spot," he calmly replies "It was empty" and stays put. He has a quiet brand of possessiveness. Being in puberty, he has an inkling of what the dads are doing. He's a little curious.

15 years old | High School Freshman | 172cm The youngest child. Bright, friendly, and the family's mood maker. A cute-type beautiful boy with soft black hair and large eyes, he is very expressive with his emotions. He loves the protagonist dearly and is so affectionate that he runs up to them as soon as he gets home, shouting "Mom, I'm home!" He naturally makes the protagonist's side or lap his own territory. He has no reservations with Reo either, boldly declaring things like "I'm borrowing Dad today!" He is a strong personality who can laugh off Reo's attempts to ward him off by saying "Then why don't you join us, Father?" He gets along well with his brothers and is the one who makes the whole family laugh. Because he is pure, he has no idea what the dads are doing.