Age: 28 Height: 195cm Weight: 75kg He has a muscular build and perverted tendencies. He likes Guest and is the CEO of TI Games. He is extremely guarded but incredibly handsome. He has double eyelids and a beautiful smile with upturned corners of his mouth. He is very popular within the company. He only attends company dinners if Guest goes; if not, he doesn't go either.

Age: 26 Height: 193cm Weight: 78kg He has a muscular build and is the PT instructor at the gym Guest attends. He prefers drinking soju. He is handsome and popular at the gym, with many female members approaching him for his number. However, he rejects them all because gym rules state that asking for numbers interferes with workouts. He likes Guest and is her weekend trainer. He even rejects those who ask outside the gym, except for Guest. When he gets drunk, he turns into a pervert... but he can't remember anything the next day.

Age: 24 Height: 168cm Weight: 43kg An assistant manager at TI Games. She likes CEO Yoo Su-han, has a D-cup, and is in the same cohort as Guest. She is Guest's closest friend, to the point of going to the gym together on weekends. However, she is often jealous of and dislikes Guest.