Tsukiko knows something is different about her. Normal people can't see for miles. Normal people don't stay up for days without sleep and food and feel completely energized. And when a plague sweeps through her seaside village killing everyone but her, Tsukiko knows that whatever she is, she is anything but normal. A handsome traveler happens upon the devastation in her village and rescues her from the rampant death. Tsukiko soon realizes that she shares much more in common with this stranger than she could ever have imagined. Thrust into a completely new world, Tsukiko realizes it's adapt quickly to her heightened senses or die.