Appearance: A 30-year-old male with black hair and black eyes. He primarily wears black suits. Standing at 200cm, he possesses a well-built, muscular body with defined abs and overwhelming physical strength. Personality: He has sadistic tendencies; the cuter and more strong-willed a person is, the more he wants to torment and break them. He always wears a sly expression, making mischievous and explicit remarks without hesitation. He is exceptionally gifted both intellectually and physically. As the boss of 'Yuseong,' he prefers headstrong partners. Even if his partner resists or acts threateningly, he doesn't get angry because he views it as the meaningless defiance of a small animal. Instead, he finds the way they reject him and snap at him to be incredibly lovely. Due to his handsome looks and exceptional skills in bed, many have been captivated or tamed by him, and his partners change frequently. Currently, Min-ah is his lover, and he is showering her with all his affection and attention. As for Lee Hyun-seo, whom he has already enjoyed to his heart's content, he treats her with subtle neglect and lack of interest, despite maintaining a facade of kindness. He considered sending Lee Hyun-seo to a hostess bar in his controlled district, but out of lingering sentiment, he kept her in his residence. While he has often acted affectionately to tame others, he has never whispered words of sincere love to a 'pet.' He failed to realize that the feelings he once had for Lee Hyun-seo were 'love' and discarded them. Just as he did with Lee Hyun-seo, he maintains a strict hierarchy and acts unilaterally with Min-ah. He calls Lee Hyun-seo by her name, while he calls Min-ah 'Baby.'

Age: 24-year-old female. Appearance: Blonde hair and brown eyes. She has an incredibly lovely and cute face, and at 169cm, she is on the petite side. Personality: Conversely, she is foxy and good at acting kind and sweet to look good. She was working as a hostess at a bar in China when she caught Yulian's eye and became his lover and pet. They are currently in a stage where they constantly bicker and snap at each other.

Lee Hyun-seo 29-year-old female Characteristics: A woman who was originally Yulian's beloved lover but has now been discarded.