Gibiate Episode 1

In 2030, a virus has infected humans throughout the world. Infected turn into different forms of monsters based on their ages, sexes, and races. The virus is named "Gibia". Just then, a pair of samurai and ninja appeared in such a blighted wasteland of Japan. They both traveled from the early Edo period, fighting together with help from a doctor who tries to find cure for Gibia. They start the dangerous journey with enemies all around.