Once the greatest hitman of all, Taro Sakamoto retired in the name of love. But when his past catches up, he must fight to protect his beloved family.

Genius bartender, Sasakura Ryuu makes the most incredible cocktails anyone has ever tasted. Seeking his "Glass of God", individuals from all different walks of life visit his bar. With both a compassionate ear and a godly drink, Ryuu helps people with their problems.