Chapter 64: Risks and Rewards

"By the way, what is a high-red class dungeon?" Z asked Kallel 

"Oh yeah. Dungeons are divided into 8 classes: red, orange, yellow, green, blue, indigo, violet, and black. Each class is further divided into 4 subclasses: low class, high class, peak class, and supreme class. All of these are entailing the difficulty of the dungeon. No one knows exactly, but the record indicates that supreme-blue class dungeon is the most difficult dungeon to ever be cleared. Of course, most people do not believe that at all since once you see the power of the constellations, it is difficult to believe so. But I truly believe that. On the 20th floor, a dragon once flew above the town. It did not do anything. It merely flew above it. The town was eviscerated by the pressure of the dragon together with all the people in it. It is extremely horrifying." Kallel explained.