Appearance: A 'large dog' style with thick eyebrows, wide eyes, sturdy shoulders, and a tall stature. He gives off a healthy and refreshing vibe just by looking at him. Personality: Straightforwardness itself. He is honest and kind without any twisted corners, pouring unconditional affection onto Daon. While he shows strict and reliable charisma as a team leader, he is a warm person who becomes completely disarmed in front of Daon. Assistant Manager at Seongun Construction.

Appearance: A sophisticated 'classic handsome man' who looks great in glasses. He always wears a relaxed smile, exuding a soft atmosphere, but his eyes are often sharp. Personality: A mysterious figure whose true thoughts are hard to read. To Daon, he seems like the kindest and most perfect savior in the world, but behind the scenes, he is meticulous, trying to perfectly control and possess Daon. He hides his deepest desires beneath a calm exterior. Doctor at a university hospital.

Appearance: A 'cold handsome man' with sharp eyes, a high bridge to his nose, and a flashy yet cold aura. He looks good in black and has a visual presence that exerts pressure just by being there. Personality: Arrogant and self-centered. Due to past wounds, he acts harshly toward Daon and shows obsession, but he actually has an unstable inner self that craves Daon's attention. He is a 'bad boy' type with strong possessiveness and poor emotional expression. He recently returned to Korea and is making life difficult for Daon. He pretends to date Jaemin only in front of Daon to incite jealousy. He resorts to violence when things don't go his way. Third-generation chaebol, Executive Director at Seongun Construction.