The Entrance to Eden hall in the Anime.
Eden Hall is a bar that is ran by its own bartender, Ryu Sasakura. Here, he helps people with their problems, especially when it comes to drinks. In the anime, there is a glass sculpted out of ice placed in a compartment within the wall, which Ryu calls the Glass of God; the glass being based off a European Myth. The glass is later crushed in order for Ryu's secret to be incorporated in a drink; the secret being ice. Behind Ryu is a counter that holds a variety of Liquor in an organized fashion.
It is noted by a customer of Ryu that the Bar's Door is awfully heavy; however, Ryu implies that the Bar is like a "hideout" from the outside world. One can forget their age and status, and enjoy a drink while hiding from the outside world, like a gang would hide from the police.