Facing a grueling deadline, game programmer Ichiro takes a nap in his office, but wakes up inside a world very similar to the game itself, and in a younger body.

Satou tries to orient himself inside the strange but familiar game world, his insider knowledge only getting hi so far.

Satou and Zena's tour of the city ends abruptly when they see a mob persecuting demi-human slaves; everyone finds themselves trapped in a labyrinth.

Satou goes on a mission to seek out the others trapped with him in the labyrinth to carry out a daring escape.

Satou takes custody of the slaves to save them from a difficult life of hardship and meets mysterious sisters along the way.

While Satou attempts to find a place for his growing group to stay, giant insects attack the city and they are forced to stop the devastation.