"The world of demons isn't as sweet as cream." This time, it's a cocktail for supporting the demon idol!? Naori has been tasked with creating a cocktail for the immensely popular idol, "Aju," who is a demon. Can the solitary bartender stand up to the brilliance of the stage!? And the fate of Hinata is revealed―― Turbulence approaches in Volume 4! *This book is a revised and expanded version of a work published by another company under the same title, with a new cover design.