Dragon Cliff Dungeon.
Though called a "dungeon," it's more like a massive alternate space, and the dragons are the only masters of this realm.
Unlike other dungeons that extend downward, Dragon Cliff rises layer by layer from the base, piercing the clouds.
In the lowest layers, a variety of dragon beasts reside, most being sub-species with thin bloodlines yet able to reproduce steadily.
At the summit, tens of thousands of meters high, lies the domain of pure-blood giant dragons.
Of course, this space isn't inhabited only by giant dragons.
For instance, the kobolds serve their respective giant dragon masters and have earned the right to operate in specific areas.
Kuku is one such kobold, destined from birth to serve the great giant dragons.
Today is the day to perform his sacred duty of cleaning the dragon's lair for his master.
