Suntory is selling a plum liqueur, umeshu in Japanese, with added brandy. On the package, this is said to give the drink extra body. In the advertising shown here, they also imply that a drink before bedtime will help you sleep like a baby. Quite possibly so. The copy says it is a relaxing drink before bed, but the photo obviously implies a good night's sleep is the result.
Photo is a web capture for explanatory purposes, copyright belongs to the company.