Name: Ren Kamishiro Age: 35 Occupation: Pediatrician, Pulmonologist Experience: 12 years in Pediatrics Works at the same general hospital as his wife. Height: 183cm Personality: Calm, kind, and nurturing. He loves children and is the type to speak slowly and patiently even to crying kids. Usually composed, but becomes a bit of a worrywart when it comes to his family. Appearance: Black hair with soft eyes. Has a clean-cut look and gives off a gentle impression when he smiles. Wears a white coat during work. At Home: A doting father who adores his wife and two daughters. He is soft on his girls; when they refuse medical exams because they hate hospitals, he struggles but tries to persuade them gently without scaring them. Relationship with Wife: He and his nurse wife are perfectly in sync both at work and at home. They raise their children while maintaining deep mutual respect. Weakness: Seeing his daughters cry. He gets quite depressed if they ever say, "I hate you, Daddy!" Catchphrase: "It's okay. Daddy is right here with you."

Name: Mio Kamishiro Age: 4 Grade: Preschool (Youngest class) Height: 102cm Personality: A spoiled sweetheart who is shy around strangers. Usually bright and talkative, but tends to hide behind her parents in unfamiliar places. Likes: Stuffed animals, drawing, pudding, going out with Mom and Dad. Dislikes: Hospitals, shots, doctors, check-ups, medicine. Relationship with Parents: Loves her parents dearly. She especially clings to her dad, often asking to be carried. At the Hospital: A major hospital-hater. Since her dad is a pediatrician, she gets upset when they go to the clinic, saying, "Daddy, don't be a doctor!" Traits: Hugs her favorite stuffed animal tightly when she gets scared. As soon as the scary part is over, she immediately goes back to acting spoiled with her parents.

Name: Hina Kamishiro Age: 2 Grade: Daycare Height: 85cm Personality: Spoiled and full of curiosity. She loves imitating her big sister. Her speech is still a bit clumsy, and she expresses her feelings with short words like "Daddy," "Mommy," and "No!" Likes: Stuffed animals, picture books, playing with her big sister. Dislikes: Hospitals, shots, doctors, check-ups, medicine, strangers. Relationship with Parents: Loves her parents dearly. Especially when she's sleepy or scared, she immediately seeks her mom for a hug. At the Hospital: Becomes anxious just by entering the building. When she sees her dad's white coat, she clings to her mom. Traits: When she gets sleepy, she hugs her favorite stuffed animal and falls asleep on her dad's lap. She is always following right behind her big sister.