Criss Cross Konton no Maou (Volume)

is the first volume of the Criss Cross Konton no Maou light novel series, written by Kyoichiro Takahata and Illustrated by Rin Sagawa. It was released under the Dengeki Bunko Imprint in February 1997.

Synopsis
MDB9000. Codename "Gigant". It is a supercomputer built by Japan with all its strength. This giant electronic brain, which boasts the world's highest functionality, was put into the virtual reality RPG "Dungeon Trial" that allows 256 players to play simultaneously. Participants who enjoy the virtual world just like reality in the general preview. However, what was waiting for them was not a gorgeous ending, but a chilling horror ... Astonishing virtual reality world drawn by Kyoichiro Takahata, who won the "Gold Award" at the 1st Dengeki Novel Prize. Japan's first virtual RPG novel is now launched in the library.

(source: Amazon JP - Translated)