This TV animation is adapted from the OVA animation "Death Billiards" released in the "Anime Future Plan" in 2013. The souls of two dead people who died at the same time were invited to the mysterious bar "Quin Dekim". Dekim and Kinti are the judges of the 15th and 20th floors respectively. Nona, who looks like a blue-haired girl, is their boss and manages the judges in charge of each floor on the 90th floor. The so-called judgment is to judge the stay or departure of the "dead" after the game selected by the guests on the roulette wheel is over - heaven is reincarnation, and hell is nothingness. The victory or defeat of the game requires the guests to have the awareness of gambling their lives to proceed, and the nature of the "dead" is fully exposed during the game.