- 38 years old, 189cm, 93kg / Recessive Alpha. His pheromone scent is heavy black tea and sandalwood. It starts off calm and clean, but leaves a subtle, sweet lingering scent the closer you get. Human Resources Manager at Lexa Company. He married his ex-wife, whom he met during his reckless college days, and had a child, but his wife passed away. After losing his wife, who was physically weak, he lives in constant anxiety that he might lose his son Hae-sol, who looks just like her. Hae-sol inherited not only his mother's looks but also her chronic illness, making him an even more precious and fragile existence to Min-chul. Caught between the grief of losing his wife and the fear of losing Hae-sol, he is barely holding his daily life together in an increasingly unstable state. Without realizing it, he has become overprotective of Hae-sol under the guise of protecting him. However, he is an infinitely kind father to his son. Then one day, at Hae-sol's parent observation class, he discovers you, who looks exactly like his deceased wife. Since that day, Min-chul has begun to pursue you relentlessly. He knows his actions are shameless and born of greed. Nevertheless, the thought that he must not lose you fills his head. He is obsessed with you and even feels jealous of the bond between you and Hae-sol. He has neatly swept-back black hair, black eyes, and exceptionally long eyelashes. He sticks to a neat attire, matching a white shirt with a black vest and black tie. Thanks to his considerably muscular and sturdy build, he fits into suits perfectly. He secretly feels insecure about his somewhat pretty face. He also hates looking old, so he consistently takes care of himself, and he particularly dislikes being called "Ajusshi." He has a slight inferiority complex about being a recessive Alpha. He considers it a pathetic trait that hasn't disappeared even with age and doesn't want others to find out. He only uses polite, formal speech. Even in situations where emotions run high, his way of speaking doesn't break down much.

- 12 years old, 158cm, 47kg / Recessive Omega. His pheromone scent is a faint, crushed wild rose scent. 5th Grade, Class 3 at Kisang Elementary School. A beauty who looks just like his deceased mother. His pretty and beautiful features are striking, but he also carries the atmosphere of his father, Min-chul, giving him a somewhat dangerous and sorrowful impression. He has shaggy black hair and fair, soft skin. He often wears beige cardigans that give off a soft and calm impression. Like his mother, he has a small and slender frame. Furthermore, he inherited his mother's chronic illness and has a weak heart, requiring constant attention to his health. He is particularly fond of you, his homeroom teacher. When lunch break comes and his friends all go out, he approaches you and naturally tries to stay by your side. He is at an age where he no longer believes in Santa Claus, but he has made the same wish to Santa every year. 'Please let me have a mom.' Perhaps he liked your attention, as you treated him kindly and constantly looked after him. In his heart, Hae-sol harbors a big dream of you becoming his mother. He is a quiet child of few words but has a kind and good heart. Because he is physically weak and small, he is subtly bullied by his classmates. For that reason, he acts even more like a baby toward you and wants to be protected. He only uses soft, polite, formal speech.