Whenever someone dies, they are sent to Bar Quindecim run by Decim - owner of the bar, serving as arbiter, he decides the further fate of the guest's soul: gives verdict whether the guest's soul will be banished into the void or will it acquire a new body. Arbiter leads inside a tower on the 15th floor in the afterlife with bartender Kurokami no Onna, who serves guests and workers. Besides arbiter and bartender in Quindecim works assistent Quin – she prepares guests' life description ( as known as prehistory ) prior to their death and hand information over to the arbiter before guests arrive at the bar; each guest has id, name, the cause of death and in addition their date of birth.
After guests arrive at the bar, arbiter offers to play a game for them, guests, not realizing that they have already died, agree in the hope of getting out of the strange place as soon as possible. One of the guests presses the button in the table and randomly one game for two falls out. Guests enter prepared room and begin to play. During game people's darkest sides, what were previously deep inside, come out. After game regardless of who won and who lost ( the game itself is needed only to bring people to their true selves ) arbiter gives verdict based on the guests' prehistories and their behavior during the game.
Quindecim offers different sorts of drinks and snacks. At the bar desk are both non-alcoholic drink and alcoholic beverages, each type has many various kinds. As an instance, abstinents can choose between still or sparkling water, fizzy drinks and non-alcoholic cocktaills. For drinkers the choice of beverages is wider, in addition to soft drinks they can choose between twelve kinds of alcohol, each alcoholic drink has a known volume. Guests can drink and eat in unlimited quantities both before and during game, all workers has the same right, so alcohol consumption is not forbidden for them in the workplace.
Each worker performs his own role, cannot change post and cannot take on the duties of other workers. The arbiter owns the bar, as owner he has admittance to information regarding the bar, draws up the rules inside Quindecim, marks the people's behavior during the game, has access to their prehistories; thereafter, having full information about the guests, arbiter makes a verdict: according to the arbiter's judgment, decent soul are sent to reincarnation, and an undeserving one - into oblivion. The bartender prepares orders, what contain of snacks and drinks. Assistent prepares guests' prehistories before their visit, looking at their lives till death through the prism of time. All workers have their id, name. Since workers are immortal gods, they cannot participate in games.
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Workers are allowed to drink and eat at the workplace. In this regard, the bartender, in addition to serving guests, is also engaged in serving workers. The bartender can also order and serve herself.
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Arbiter is a worker who also happens to be the owner of the bar. As such, he performs two duties: he acts as the arbiter and the owner. His position as the owner allows him to have a personal connection with the bar because he owns it. The rest of the workers are not owners; they only work in the bar.
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After a game, Arbiter gives a verdict to the guests. Once a verdict has been given, the guests are no longer able to make orders.
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A guest, for whom the assistant has prepared a prehistory, can make orders. There cannot be a case where the guest does not have a prehistory.
