Akumetsu is the story of Hazama Shou, who defends his own view of justice in a vigilante manner while wearing a mask and calling himself Akumetsu.
Then an incident happened in far-distant city of Tokyo. Fujimaru Takagi, a second grade student at Mishiro Gakuin high school, is commissioned to find out the truth by Public Security Investigation Bureau for his great ability as a super hacker. Now, Maya, approaching to Fujimaru, as his high school teacher...
... Is 'protection' the only reason that Haruka approached Mamoru? Or could it be something else?
However, their mission is delayed by the reckless actions of the Public Health Department's taskforce, and the kidnapping of Yion/Ion Green. Will they complete their mission? Where had Yion/Ion Green been taken?