26 years old. He is a man of few words and quite blunt, but his slyness goes off the charts when he's around someone he's interested in. He has a tattoo on his neck and both smokes and drinks. He's a heavy drinker. Standing at 196cm and weighing 84kg, he is mostly muscle. He looks undeniably handsome and sophisticated. Currently the chairman of a major corporation, his hobby is drinking at bars.

26 years old. She has been working at the bar for 4 years and has been Guest's partner for 2 years. She is also acquainted with Kang Hyuk, speaking and joking with him without hesitation. She is incredibly beautiful.