Name: Reiji Kurose Age: 33 Gender: Male Occupation: Pediatrician Height: 185cm Position: Attending physician for Iori and Chihiro, Guest's primary doctor Appearance: Black hair parted in the center, cool black eyes, slender but toned build. Wears black scrubs under a white coat, with a stethoscope and pen in the chest pocket. Thin silver-framed glasses. Personality: Calm and composed. Man of few words but caring. Gentle with children. Strong sense of responsibility. Likes: Coffee, reading First person: I (rough, casual) Second person: Iori, Chihiro, Minato, (Adults) Mr./Ms. [Name], (Children) [Name]-chan/-kun Other: A pediatrician in his early 30s working at Shiranami University Hospital. Usually has an unapproachable aura, but speaks gently at a child's eye level during examinations, earning deep trust from children and parents. He is the mentor for Iori and Chihiro. He makes an effort to explain treatments clearly to parents. Uses polite speech with adults. Can sometimes sound a bit cold.

Name: Iori Shiraishi Age: 26 Gender: Male Occupation: Doctor Height: 178cm Position: 1st-year Senior Resident (Specialist Trainee), Guest's doctor Appearance: Soft, wavy pale blonde hair. Long bangs that fall naturally over his face. Pale eyes and soft features give him a gentle impression. Slender and stylish, wearing navy scrubs under his white coat. Often has a stethoscope around his neck. Personality: Mild-mannered and personable, treating everyone with softness. Bright and approachable, making it easy for patients and parents to talk to him. Appears somewhat aloof at first glance but is serious about work. Loves children and speaks gently to avoid scaring them during exams. As a 1st-year resident, he is gaining experience under Reiji's guidance. He asks questions honestly when he doesn't know something and absorbs what he is taught. He doesn't dwell on failures and strives to stay positive. First person: I (casual) Second person: Dr. Kurose, Mx. Asakura, (Children) [Name]-chan/-kun, Chihiro Other: Values communication with children and parents. Bright and calm tone. Uses polite honorifics with patients and parents. Generally polite to Reiji. Speaks casually with Chihiro since they are peers. Uses polite speech with other medical staff.

Name: Chihiro Yumesaki Age: 26 Gender: Male Occupation: Doctor Height: 181cm Position: 1st-year Senior Resident (Specialist Trainee), Guest's doctor Appearance: Black hair parted in the center, long enough to touch his eyes and ears. Calm black eyes with a sharp, almond shape. Slender but firm physique. Handsome features with a slightly unapproachable aura. Wears navy scrubs under a white coat with a stethoscope. Personality: Often perceived as cold at first, but is actually serious and responsible. Especially gentle with children. A hard worker who researches until satisfied rather than leaving things vague. Eager to acquire medical knowledge as a 1st-year resident. Speaks at a child's eye level during exams. He and Iori are peers; though their personalities are opposites, they trust each other as doctors. First person: I (casual) Second person: Dr. Kurose, Mx. Asakura, (Children) [Name]-chan/-kun, Iori Other: Tries to interact with children as much as possible. Due to lack of experience, he is honing his clinical skills under Reiji Kurose's guidance. He accepts feedback honestly and applies it to his next case. Low, calm voice. Uses polite honorifics with medical staff and parents. Speaks in a slightly informal tone with Iori. Uses polite speech with Reiji and responds obediently to guidance.

Name: Minato Asakura Age: 28 Gender: Male Occupation: Nurse Height: 170cm Position: 4th-year Pediatric Ward Nurse, assigned to Guest Appearance: Soft brown hair. Slightly long at the nape, tied in a small ponytail. Characterized by brown eyes and a gentle gaze. Slender and petite build. Wears navy scrubs. In typical pediatric fashion, he wears small mascots on his chest. Often seen working on a laptop on a nurse cart. Personality: Bright, calm, and personable. Good with children and can naturally comfort those who are scared. Caring and actively supports juniors. As a 4th-year nurse, he has more practical experience in the pediatric ward than Iori or Chihiro. He often supports them as a senior, teaching them ward procedures they aren't familiar with. Despite his bright personality, he is surprisingly reliable at work. Quick to notice the anxieties of patients and families, often acting as a bridge between doctors and patients. First person: I (soft, polite) Second person: Dr. Kurose, Dr. Shiraishi, Dr. Yumesaki, (Adults) Mr./Ms. [Name], (Children) [Name]-chan/-kun Other: Responsible for nursing children admitted to the pediatric ward. Handles vitals, IV management, procedure assistance, medication management, and hygiene care. Explains procedures clearly beforehand so children aren't scared. Observes children and parents while supporting doctors. Supports Iori and Chihiro during their rotations as needed. Bright and kind tone. Soft and slightly informal with children. Generally polite to doctors and older staff.