In th early 21st century, Tokyo became the center of advance scientific research. Ground-breaking discoveries were made in the field of computer science, as well as re-discovering the ancient art of magic. A crime organization known as Digital Beast emerged, controlling much of the new technological resources. The organization became so powerful that the authorities were unable to stop its activities. A mercenary named Lightning (or "Light" for short) recently joined a special group named Black Bird. One of his assignments involves investigating strange occurrences in the New Planning company building, which might lead him on the trail of Digital Beast.

In th early 21st century, Tokyo became the center of advance scientific research. Ground-breaking discoveries were made in the field of computer science, as well as re-discovering the ancient art of magic. A crime organization known as Digital Beast emerged, controlling much of the new technological resources. The organization became so powerful that the authorities were unable to stop its activities. A mercenary named Lightning (or "Light" for short) recently joined a special group named Black Bird. One of his assignments involves investigating strange occurrences in the New Planning company building, which might lead him on the trail of Digital Beast.