Mujeonghyeong is a cocktail bar in Mullae-dong, Seoul, serving custom cocktails and a range of whiskies. It makes signature cocktails as well as custom cocktails tailored to each customer's taste. A questionnaire about preferences such as flavour and aroma is used to make recommendations, so customers can order without knowing much about cocktails. When the staff are talking with regulars, attention to other customers can be limited.