: Having already hacked into the encrypted "Christmas Massacre" chip, Fujimaru continues to help Third-I track down the biological weapon known as the BLOODY-X virus.

: Bloody Monday is a Japanese manga written by Ryō Ryūmon and illustrated by Kōji Megumi . It follows Fujimaru Takagi , a high school student and genius hacker known as "Falcon," who must help a secret government agency (Third-I) stop a terrorist plot to unleash a deadly virus in Tokyo.

In this volume, the stakes of the "Bloody Monday" plot escalate significantly: