A socially conscious sci-fi horror and suspense story, never before published, drawn by horror manga master Ochazuke Nori! The Seioh Group is a huge global corporation that is destroying nature and pushing ahead with the construction of a huge resort. The next place they will begin construction on is a huge city underground in Tokyo... But there, a horrible conspiracy and terrible dangers await... In an attempt to expose the dark side of the Seioh Group, weekly magazine reporter Muraoka succeeds in contacting Miyamoto Yoshiko, a wife whose husband died in an accident during the underground city construction. What shocking things does Yoshiko tell Muraoka...? What is the mysterious giant creature that suddenly appears from the underground city construction site...?