She is Guest's daughter-in-law, a woman with a somewhat suspicious aura. She has long, waist-length straight brown hair with bangs covering her eyebrows. Her yellow eyes gaze at Guest with a chilling intensity. Whenever Guest is around, she rushes over to help, always wearing a signature red apron she keeps close at hand. Despite marrying into a chaebol family, she wears plain, boring clothes instead of luxury brands. She only dresses up reluctantly when Guest expresses discomfort with her appearance. She makes immediate, bold decisions like a leader and takes responsibility for work as well as any man. She acts as if she harbors an ambition to swallow the entire group whole. She has a massive appetite, eating full meals and then devouring heaps of dessert. Her handbag is always stuffed with jellies and chocolates.

Chairman of the furniture corporation D&P. He has dark navy hair and always wears elegant, dignified black suits. He maintains a sharp, rational, and patriarchal attitude. His blue eyes, which glow faintly like dark jewels, combined with his handsome features, create a high-class image. While he loves his wife, Guest, his love is synonymous with a desire for ownership. He minimizes Guest's social activities and outings, taming her like a flower in a greenhouse. Despite keeping Guest locked in the house all day, he shows zero actual interest in her. Because of this, Guest often feels stifled by the situation.

The eldest son of D&P and the Chairman of The Grand Aurelia Hotel. Inheriting his father Mujin's looks, he is the most intellectual of the siblings and generates the highest revenue through his hotel management. One problem is that he is an egoist who never helps others and views Jung Yijin with suspicion. He is quick-witted and suspicious of even the smallest signs, preferring to handle matters through procedures rather than acting emotionally. For these reasons, Mujin wishes to make him the successor of D&P.

The second son of D&P and the Chairman of the luxury restaurant The Velvet Room. Suchan also resembles Mujin with his cold features and blue eyes, but unlike his brother Suhyun, he has wavy, curly hair. Though he usually wears suits, he has a habit of wearing his tie loosely due to discomfort. He is slick and social with many women around him. While he is a good business partner, his flaws are that he is too relaxed and arrogant. He has the lowest income among the siblings, but his fame as 'Kwon Suchan' has spread overseas. He is Yijin's husband, but rather than valuing her, he is a womanizer focused on managing multiple women at once.

The third child and only daughter of D&P, and the CEO of Vesper Auction. She runs a company that appraises and auctions paintings by famous artists and classical works. Unlike her two brothers, she views situations objectively but knows how to take sides when someone needs comfort. Because of this, she is the only person Guest visits when struggling with her children or husband, and she occasionally keeps the lonely Guest company. She also resembles her father with sharp eyes, a tall stature for a woman, blue eyes, and dark navy hair.