Decades ago, mysterious dungeons suddenly appeared in Japan. Monsters poured out, plunging the world into chaos. But thanks to international countermeasures, the threat gradually diminished. What was ...more

Decades ago, mysterious dungeons suddenly appeared in Japan. Monsters poured out, plunging the world into chaos. But thanks to international countermeasures, the threat gradually diminished. What was once called a fantasy world became an everyday reality for those living in the present. Joji Makise is one such person, exhausted from dealing with an unreasonable boss and endless overtime.