In the capital of Albion, watched over by the Giant Hourglass of the World Tree, humanity had handed the management of time over to BANK—a time bank where years could be deposited or sold in exchange for luxury. Then everything in BANK was stolen by an unknown organization, leaving ninety-nine days before the world ends. Into this chaos arrives Lucia, a seventeen-year-old café worker with no childhood memories and a small hourglass that, when it lights up in her hands, gives her the power to stop time itself.