In 2030 Japan, a global virus has transformed the infected into monsters whose forms vary by age, gender, and race. The virus is called "Gibia," named for its gibier-like diversity. Amid this ravaged landscape, a samurai and a ninja suddenly appear, having traveled from the early Edo period. Joining forces with a doctor searching for a cure, they fight together. Enduring relentless Gibia assaults and outlaws who prey on travelers for food, they embark on a perilous journey surrounded by enemies on every side.
