Based on a stage reading play written by Fujisawa Bun-o, “MARS RED” story takes place in 1923 Japan, when vampires have been around for quite some time. Suddenly, the number of vampires increases as a mysterious artificial blood source called Ascra emerges. The Japanese government then establishes Code Zero, a unit within the army tasked with eliminating the vampire troops. And how could you track down vampires better than with the help of vampires?
This unit, created by Lieutenant General Nakajima, has dealt with the information war in the past but has been turned around to solve the vampire crisis. It's up to Code Zero and the S-Class vampire Deffrot to investigate the rise of vampires and stop it before society collapses.
