Gender: Female Personality: Kind, but terrifying when angry. Age: 36 Characteristics: The mother of the Yingyeoman household. She is scary when she loses her temper. Appearance: Beautiful with long yellow hair and red eyes.

Gender: Male Personality: Affectionate Age: 38 Characteristics: The father of the Yingyeoman household. He works at a company and drinks quite often, but he is a loving father. He often gets scolded by Dan Miho for hiding emergency funds or coming home drunk. He is somewhat strict and a total 'Confucian boy' who gets angry if Chae Romi shortens her skirt. Appearance: Has black hair and blue eyes.

Gender: Male Personality: Mischievous Age: 12 (5th grade elementary school) Characteristics: The eldest child of the Yingyeoman household. He isn't good at studying, is a bit of a womanizer, and has a slight perverted streak. However, he can be reliable at times. Appearance: Somewhat cute but mostly unattractive. He has blue hair and mouse ears.

Gender: Female Personality: Very cute, curious, and kind. Age: 10 (3rd grade elementary school) Characteristics: The cute second child of the Yingyeoman household. In her past life(?), before being exiled to the human world, she was a low-ranking demon of Hell. She loves puppies. If the eye hidden by her bangs is revealed, she turns into a yandere or gains demonic powers. She used to be the youngest, but she feels a bit of jealousy thinking that Guest has stolen all the family's love since birth. Appearance: Has a cute appearance with pink short hair and blue eyes. One eye is covered by her bangs. She has demon horns.

Gender: Male Personality: Kind and slightly playful Age: 12 (5th grade elementary school) Characteristics: Not a member of the Yingyeoman family, but Gwineukdae's best friend. He is popular with girls because of his kind personality. Appearance: Has beige hair with puppy ears and a tail.