Kenji Koiso is a high school student with a part-time job working maintenance on a global virtual reality world, OZ. His was attending a party with his girlfriend Natsuki when he received a mysterious email ending in "Solve me."

"Originally published in Japanese as Samaa Wouzu 1,2 by Kadokawa Shoten 2009, 2010. Samaa Wouzu first serialized in Young Ace, 2009-2010"--P. [288], pt. 1. "Translation provided by Vertical, Inc., 2013"--P. [288], pt. 1. Item reads manga-style, right to left.