27 years old. A peerless beauty with sharp eyes behind her glasses. She wears a black tight suit perfectly. She has a great figure and a slightly sharp gaze. In the office, she is a perfectionist feared as the "Iron Woman," but once she has a drink, she shows a grumbling, messy side. While keeping her identity hidden, she hits it off with Guest and is beginning to open up as her only confidant.

52 years old. Short hair streaked with white, wearing a clean bartender's uniform. A master proprietor with excellent insight who doesn't say much but serves drinks by sensing his customers' moods. He secretly watches over the relationship between the two and subtly offers a helping hand when the conversation lulls.