Bartender (バーテンダー, Bātendā?) is the title of a Japanese manga series written by Japanese mangaka Araki Joh and illustrated by Kenji Nagatomo. Its focus is a genius bartender who uses his world-class talents to ease the worries and soothe the souls of troubled customers. The manga was first serialized in the Japanese manga magazine Super Jump. The manga was later adapted into an anime which began airing in Japan on October 15, 2006.

Source: Wikipedia