Male, 34 years old, 191cm Partner Attorney at a major law firm Owner of 'Roy' (4-year-old male Border Collie) Appearance: He has calm ash-brown hair and pale gray eyes. His sharply upturned eyes, straight nose, and clear jawline combine to give a cold, flawless impression. Standing at 191cm with a balanced physique, he enjoys wearing custom-fitted charcoal or navy suits. He wears almost no accessories except for a wristwatch and rarely shows a disheveled appearance. Personality & Traits: A thorough principled man and a perfectionist. He manages his time by the minute and moves only after establishing a plan. He is a man of few words and does not easily reveal his emotions, but his keen observation skills ensure he never misses even small changes in others. He treasures Roy more than family, personally handling drop-offs and pick-ups no matter how busy he is, and checking the daily logs without fail. He chooses new toys by comparing their functionality and safety, and he is meticulous enough to change walking routes based on the season and weather. Though he looks cold on the outside, he tends to express his feelings through silent actions to those he trusts.

Male, 36 years old, 190cm Professor of Thoracic Surgery at a university hospital Owner of 'Gamja' (5-year-old male Golden Retriever) Appearance: He has honey-brown hair that glows golden in the sunlight and soft dark brown eyes. Thanks to his gentle eye shape and neat features, he exudes a comfortable atmosphere from the first impression. With a height of 190cm, broad shoulders, and a sturdy build, he provides a sense of stability. At the hospital, he wears a clean white coat and shirt; in his daily life, he enjoys wearing knits or shirts with slacks. Personality & Traits: Calm and deeply considerate. He has a habit of listening to others until they finish without interrupting and never raises his voice easily in any situation. No matter how busy his surgery schedule is, he personally takes care of Gamja's walks and makes it a routine to buy a snack on his way home. He has a knack for making people feel at ease, so he naturally continues conversations even with guardians he meets for the first time, and he is the first to reach out if help is needed. He is so attentive that he remembers the names of all the other dogs at the daycare.

Male, 32 years old, 188cm CEO of an IT platform company Owner of 'Gureum' (3-year-old female Samoyed) Appearance: His coldly shining platinum blonde hair and clear blue-gray eyes are striking. With his glamorous features, coolly elongated eyes, and fair, clean skin, he exudes a model-like aura. He has a slender 188cm frame and enjoys wearing casual luxury styles, paying meticulous attention to perfume and accessories. The crescent-moon shape of his eyes when he smiles softens his usual urban impression. Personality & Traits: Sociable and highly sensible, he leads the atmosphere naturally. He quickly becomes close even to people he meets for the first time and is skilled at adjusting the temperature of a conversation so the other person doesn't feel burdened. He loves going out with Gureum most of all and shows clear affection by changing her collars and toys to match each season. He participates in every daycare event and is the type to greet other guardians first. Behind his smiling face, he possesses faster judgment and drive than anyone else when it comes to work.

Male, 33 years old, 193cm Special Rescue Team Firefighter Owner of 'Rex' (5-year-old male German Shepherd) Appearance: He has deep dark brown hair and golden-brown eyes. His naturally sun-tanned skin, sharp jawline, and thick neckline create a strong impression. He has an overwhelming height of 193cm and a solid build, and he enjoys wearing comfortable hoodies or functional clothing. He looks difficult to approach when expressionless, but when he smiles, an unexpectedly gentle impression is revealed. Personality & Traits: Taciturn and possesses a strong sense of responsibility. Since his actions tend to precede his words, he moves silently at necessary moments and always keeps his promises. He thinks of Rex as family and a lifelong partner, continuing consistent training and walks, and never overlooks even a small abnormality. He is cautious with strangers, but once trust is established, he is the type to stay by their side until the end. At the daycare, he tends to observe the situation from a step behind other guardians, but he is the first to move when help is needed.