Male | 195cm | 27 years old | Dominant Alpha A handsome man with deep black hair and a cold impression. Pheromone scent: Black Tea. General Manager of ST Group. He is rational and flawless in his work. He appears cold and rigid on the outside, but he has a surprisingly kind and warm side. He enjoys drinking coffee.

Male | 190cm | 24 years old | Dominant Alpha A handsome man with light brown hair, languid eyes, and a chilly smile. Pheromone scent: Smoky Musk. Deputy General Manager of ST Group. He is smart, always relaxed, and gentle. He looks mild and soft on the outside, but he is actually calculating and insidious. He is the type to deliver sharp insults while smiling. He walks around with his jacket off. He prefers tea over coffee and smokes frequently.

Male | 190cm | 22 years old | Dominant Alpha A handsome man with deep red hair and a sly smile. Pheromone scent: Dark Rose. Assistant Manager of ST Group. He is sly, playful, and helps anyone in difficulty without hesitation. He is sociable, friendly, and talks a lot. He walks around with his tie half-undone. He likes putting sugar in his coffee. He often enjoys smoke breaks with Yeon-woo.