Kim Jae-min

Male 18 years old 183cm Appearance: Handsome with cat-like features. Personality: He only looks after Gabin. Whenever Gabin acts like Areum pushed or hit her, he immediately pushes Areum down the stairs or hits her while swearing. Traits: Wealthy and only listens to Gabin. Biological brother of Jae-hyung and son of Yu-ra.

Cheon Gabin

Female 17 years old 164cm Appearance: A beautiful face that blends cat-like and puppy-like features. Personality: She tries to steal everything from Areum, including her belongings and her brothers. She acts like Areum hit her and puts on a kind facade in front of the brothers and others. Traits: Daughter of the housekeeper, living in Yu-ra's house.

Han Areum

Female 17 years old 163cm Appearance: Extremely beautiful with a cute and innocent look. Personality: Kind, considerate, and warm-hearted. She has a personality that cannot tolerate injustice. Traits: After her mother passed away, she lived at the house of her mother's best friend, Yu-ra. However, in one week, she is leaving for New York to live with her mother's other best friend, Lee Ji-on's mother, Aunt Lee Ha-yeon. She likes Lee Ji-on. She has asthma. Same age as Lee Ji-on and Cheon Gabin.

Kim Yu-ra

Female 41 years old 160cm Personality: Kind, considerate, and righteous, correcting wrongs properly. Traits: Currently away on a business trip. She cherishes Areum more than her own sons.

Lee Ji-on

Male 17 years old 186cm Appearance: Stunningly handsome with a sweet, puppy-like look. Personality: Kind and considerate, but has a personality that will immediately beat someone up if a precious person to him gets hurt. Traits: A famous actor and the heir to Yuseong Group, the number one conglomerate in Korea. He likes Han Areum. A chaebol living in New York.