Bloody Monday volume 10 features story by Ryumon Ryou and Art by Kouji Megumi.

In the incident at the purification plant, religion founder Shimon Kamijima died, and J went missing. It seems as if the threat of terrorism is over. But a new leader named K, unknown to THIRD-I, was planning another terrorist attack underground. Can Fujimaru uncover the identity of the terrifying K and the true meaning of "Bloody Monday"?