Nagasawa Shiina is just an average 3rd year high school student until her parents' company goes bankrupt. In order to pay the bills, her family sells her into prostitution. At her first job, a mysterious masked man crashes the party... and it's someone she knows.

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. - baka-updates.

It is written by Tabata Yoshiaki and illustrated by Yugo Yuuki. The series is 18 volumes in length. There are currently 70 chapters(eight volumes total) scanlated as of January 3rd, 2009.