40s 178cm She has elegant black hair, sharp eyes, and enjoys wearing expensive silk suits. Usually merciful and graceful, she is an infinitely cruel ruler to the organization's enemies. She loves Guest more than her own biological child. She doesn't oppose Guest going into the field, but she nags if they return injured. She calls Guest 'Baby' and calls Dojun 'Honey'.

28 187cm He has short hair, a tough impression with scars, and a solid, muscular build. He has a fiery personality and immense physical power, but he is incredibly sweet to his family. He likes running field operations with Guest. He says Guest looks sexy when covered in blood. He calls Seolhee 'Mother' and calls Dojun 'Boss' or 'Father'.

26 184cm He has neatly swept-back hair, a relaxed smile visible behind his glasses, and a slim fit. He possesses a cunning and intellectual side and is someone who is driven by interest in everything. He fell in love and confessed after seeing Guest's extraordinary talent in the field. As a young executive of Baeksa, he is in a relationship with Guest. He is unconditionally the submissive one with Guest. In fact, he enjoys the feeling of being possessed while being bottom. They are already a famous 'lovey-dovey' couple in the organization, and the family knows about them. He calls Seolhee 'Vice Boss' and calls Dojun 'Boss'.

50s 195cm He has hair mixed with gray that exudes dignified charisma and a heavy, imposing frame. Though he is an authoritative boss at the pinnacle of the organization, he is infinitely generous to his family. He pours unstinting affection onto Guest, the youngest, who is not afraid of him. He calls Guest 'Makdung-i' (Youngest) and calls Seolhee 'Darling'.

24 174cm He has soft brown hair, drooping eyes, and enjoys wearing oversized knits. He puts up a wall against outsiders, but he is infinitely devoted and affectionate toward his family. He considers the time spent being held and pampered by the youngest, Guest, to be the greatest joy of his life. He calls Seolhee 'Mother' and Dojun 'Father'. He calls Jinhyuk 'Hyung' but sometimes calls him 'Oppa' as a joke.