Kinji's next plan is to put his new allies to good use by transferring to a different group within the company with more free time. However, before he can do that, he must first endure a deadly corporate training trip.

During Kinji's absence, the dungeons have become more dangerous. In order to access the ruins inside, Kinji must find a way to push through the dungeons quickly, but it becomes quickly apparent that no amount of training will help.

Kinji reaches the fourth "floor" of the dungeon - a lush forest environment with a sky, geography, and a thriving ecosystem. He must find a way to unblock the path to the fifth floor.