In a city ruled by vices and thriving on sins, there exists a game. Known only as Sophos' Game, those who play are guaranteed one wish upon winning - regardless of its content or consequence.
The allure of such a game attracts all types of people. One of them, a girl without recollection of who she is nor where she came. Pitiful for her, that she cannot remember the fine print.
In this game, there are only two rules. Only one person can win, and offences against other players will go unpunished.