Tokyo, 2030. A pandemic called Gibiate, which transforms all regardless of age, sex, or race into monsters known as Gibier, has spread throughout the world. This is the age that the samurai, Kanzaki Sensui, and the shinobi, Sanad Kenroku, find themselves in after traveling through time from the Edo era to meet the Doctor and his assistant, Funada Kathleen. What future lies in store for Sensui and Kenroku as they face these monsters for the first time?
But two years ago 
a disease began to spread...
...لكن منذ عامين بدأ مرضٌ بالانتشار
Aber vor zwei Jahren
breitete sich eine Krankheit aus …
Pero hace dos años
surgió una enfermedad…
Pero hace dos años surgió
una enfermedad…
Mais la maladie s’est répandue
il y a deux ans.
Però due anni fa un morbo ha iniziato a diffondersi...
Mas dois anos atrás, uma doença
começou a se espalhar...
Хотя... два года назад начала
распространяться болезнь...