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?
Everyone said it was probably 
something like mad cow disease.
قالَ الجميع أنّه كان غالباً شيئاً
يُشبه مرض جنون البقر
Es sollte so etwas Ähnliches wie BSE sein.
La gente pensó que era
como lo de las vacas locas.
La gente pensó que era
como lo de las vacas locas.
Les gens comparaient la maladie
à celle de la vache folle,
Tutti dicevano che probabilmente
era qualcosa di simile al morbo della mucca pazza.
Todo mundo comentava que
era tipo a doença da vaca louca.
Одни говорили, что это нечто
вроде коровьего бешенства.