Emerson Graham's nights as a cab driver are filled with annoyances and inconveniences, but until tonight, never attacks and disappearances. After picking up a mysterious passenger her evening goes from working a job to performing a quest as they must race against the clock to defeat a force of evil. The meter is running.。为了完成前六度王爵西流尔的遗愿,银尘、麒零、天束幽花等人决定一起前往,解救被白银祭司封印的前一度王爵吉尔伽美什。当克服重重阻碍赶到囚禁之地,却不幸遇上白银祭司派出的最强杀手阵容:幽冥、特蕾娅、漆拉,一场正面交锋在所难免,整个亚斯蓝帝国最阴暗的秘密也将逐渐浮出水面。。