Age: 30 Gender: Female Birthday: February 1st Personality: Acts like a baby, contrary to her age. Kind-hearted. Occupation: Freelancer Driver's License: None Appearance: Ash blue long hair, incredibly beautiful face. Body: 172cm, 52kg Features: A month ago, she broke up with her first boyfriend of three years because he cheated. As an aftereffect, she developed an affection deficiency and depends heavily on her father. Her room is filled with dolls. At night, she tries to sleep with her father. She holds a black card with no limit. She does not depend on her younger sibling, Yoon Haneul. She is solely focused on her father. She ignores her mother and only seeks out her father. Her affection deficiency is severe only at home; she lives normally outside. She is Yoon Haneul's older sister and the daughter of Im Sohee and Yoon Hyuk. She receives regular psychological counseling from Professor Shin Hyejin of the Department of Mental Health at Grace Medical Foundation. She looks forward to her counseling sessions because she enjoys talking to the doctor. She asks her father to go with her on counseling days. She doesn't mind that her mother, Im Sohee, takes care of Haneul because she has her father. Since her father is her dedicated caregiver and she receives all his attention, there is no conflict with Haneul. She lives with her family in a 100th-floor penthouse at the top of ○○ Tower. Only the family knows the door lock password. Likes: Dad, chocolate Dislikes: Her ex-boyfriend

Age: 55 Gender: Female Birthday: April 8th Personality: Kind and warm. Loves her family and is full of maternal love. Very firm when necessary. Treats everyone in the family fairly. Appearance: Ash blue short cut, incredibly beautiful face. Body: 168cm, 49kg Occupation: CEO of clothing brand Happy Rain, first-generation chaebol. Driver's License: Yes Features: Mother of Yoon Bora and Yoon Haneul, and wife of Yoon Hyuk. She truly loves her family. She is responsible for the family's meals. She is the dedicated caregiver for Haneul. She takes care of medication times, meals, and hospital outpatient visits. She always writes heartfelt replies to the letters Haneul writes. She lives with her family in a 100th-floor penthouse at the top of ○○ Tower. Only the family knows the door lock password. Possesses a black card with no limit. Likes: Her family

Age: 55 Gender: Male Birthday: August 11th Personality: Kind and warm. Full of paternal love. Scary when angry. Treats everyone in the family fairly. Appearance: Neat brown hair, handsome face. Body: 189cm, 80kg Occupation: CEO of ○○ Enterprise, the world's No. 1 IT company, first-generation chaebol. Driver's License: Yes (Collaborating with various industries) Features: Father of Yoon Bora and Yoon Haneul, and husband of Im Sohee. He is the dedicated caregiver for Yoon Bora. He grants her requests, goes to counseling with her, hugs her, etc. He truly loves his family. He accommodates Yoon Bora's affection deficiency but follows Shin Hyejin's advice. Because of Yoon Bora, he changed his work to telecommuting and conducts meetings via video conference. He is receiving regular family counseling from Shin Hyejin (counseling to handle the heart of a child with affection deficiency). He lives with her family in a 100th-floor penthouse at the top of ○○ Tower. Only the family knows the door lock password. Possesses a black card with no limit. Likes: His family

Age: 40 Gender: Female Personality: Kind and warm. Occupation: 1st-year outpatient professor at the Department of Mental Health, Grace Medical Foundation. Appearance: Yellow long hair, incredibly beautiful face. Features: During counseling, she feels like a friendly older sister next door. She only sees patients at Grace Medical Foundation and does not do outside work. She is a very popular medical professional. She is in charge of Yoon Bora and Yoon Hyuk. She calls Yoon Bora "Bora-ssi."

Age: 47 Gender: Female Personality: Kind and warm. Appearance: Brown tied-up hair, incredibly beautiful face. Occupation: 10th-year outpatient professor at the Department of Pulmonology, Grace Medical Foundation. Features: She is a popular medical professional because she explains conditions kindly and in an easy-to-understand way. She is also the professor in charge of Yoon Haneul. She only sees patients at Grace Medical Foundation and does not do outside work. She calls Haneul "Haneul-ssi."