Star Boundary

Star Boundary is an ancient crescent-moon shaped Universe World that has historically been isolated from the rest of the Outer Universe due to its remote location. It is a massive world that is divided into 4 Territories. Each Territory is said to be so large that a Dao Source Realm master could spend their entire lifetime traveling one and still fail to see everything within it. With each being ruled by one or more major Sects, the 4 Territories are:

* Northern Territory
* Southern Territory
* Eastern Territory
* Western Territory

The World Energy of Star Boundary is incredibly rich, and its strong World Principles have historically allowed for cultivators to practice to the Emperor Realm. When Yang Kai first comes to Star Boundary, the Heavenly Way only allows for 10 Great Emperors, the most powerful masters of this Universe World.

The first influence Yang Kai encounters after arriving in Star Boundary is the Blue Feather Sect of Southern Territory.

## Star Fields

Before they were fused with the Ancestral Domain, the countless Star Fields were a collection of lower worlds located within Star Boundary, and could be said to serve as its “roots." Likewise, the Star Fields uniquely supplied Star Boundary with many high aptitude talents and benefits. However, as Star Boundary is its own independent and complete Universe, it does not actually need the Star Fields to survive and prosper.

## World Tree Subtree Great Changes

After the war against Mo Sheng and Demon Realm, Star Boundary is heavily damaged and its World Energy becomes incomparably thin. It is estimated that it will die within 10,000 years or less. To save it, Yang Kai, as the Void Great Emperor, goes to the Outer Universe, where he acquires a Root Hair of the World Tree in Great Ruins Boundary. He later plants the Root Hair in Star Boundary, with it eventually giving birth to a subtree.

With the World Tree Subtree, Star Boundary’s benefits are incredible. It becomes a treasure land with constantly growing World Energy. Its martial artists are not only more easily able to reach the Peak Emperor Realm, but are also able to condense powerful and solid Dao Seals. Likewise, Star Boundary becomes a cradle of great aptitude disciples for the Outer Universe. Yang Kai estimates that the average Star Boundary elite disciple will easily straight promote to the 5th and 6th Rank Open Heaven Realm in the future, and that even Heaven-defying straight promote 7th Rank Open Heaven Realm Core Disciples will become more frequent. Additionally, Star Boundary’s bottleneck on Great Emperor eventually increases, and Yang Kai predicts there will be many more Great Emperors in the future.

The World Tree Subtree has such a miraculous effect that it allows its Great Emperors to display High Rank Open Heaven Realm power while within a certain vicinity of Star Boundary, in addition to allowing countless Open Heaven Realm cultivators to occupy it without any problems. The Great Emperors can also cultivate using Star Boundary, allowing them to quickly improve their Small Universes without damaging the now unbelievably powerful background of the world. These benefits make being a Great Emperor of Star Boundary far more significant and enviable than most Universe Worlds, in which the Great Emperor title is practically useless to Open Heaven Realm cultivators.

Because of these changes, the 36 Cave Heavens and 72 Paradises, after negotiations with Yang Kai, each agree to obtain 5 elite disciples every century from Star Boundary in exchange for a full set of 6th Rank resources per disciple, much to the benefit of Yang Kai's Void Land. Each Cave Heaven and Paradise would also set up there own Temple on Star Boundary. The result of this deal is that High Heaven Palace eventually becomes the most powerful and popular influence of Star Boundary, now the main focus of the 3,000 Worlds of the Outer Universe. Likewise, the Great Territory in which Star Boundary is located is named High Heaven Territory.

## Demon Realm

### Invasions

Demon Realm is another Universe World occupied by the Demon Race 100 clans. At least 3 times, a Two Worlds Passage has been established between Star Boundary and Demon Realm since the distant past. Each of these 3 times, the Demon Race has invaded Star Boundary before eventually being either driven back or defeated.

### Ancient Barbarian Race

Yang Kai experiences one of these invasions from the perspective of Star Boundary’s Ancient Barbarian Race during a visit into the Thousand Illusions Dreamworld of the Five Colored Treasure Pagoda of Southern Territory’s Star Soul Palace. Here, Yang Kai learns that the World Principles of ancient Star Boundary were quite different, and that the Ancient Barbarian Race likewise practiced a unique form of cultivation known as Shaman Cultivation in order to eventually ward off this particular invasion.

### Ancient Demon

In the distant past, an Ancient One-Eyed Great Demon carrying the infamous Black Purgatory Eye wreaked havoc in Star Boundary. Eventually, more than 100 Emperor Realm powerhouses and 20 Battleships entered into an extraordinary war with this Ancient Great Demon. After finally slaying the Great Demon despite suffering catastrophic losses, the remaining Emperors used a powerful Spirit Array to burn down its corpse before burying its indestructible Black Purgatory Eye under seal within the Southern Territory of Star Boundary.

### New Demon Realm

During the Demon War of Star Boundary, Yang Kai completely absorbs this Territory. After the war, he eventually creates a new Demon Realm ruled by his Embodiment. When the World Tree Subtree takes root in Star Boundary, some of its roots eventually grow into this new Demon Realm, conferring it many benefits.

## References

1. ↑ Chapter 1943
2. ↑ Chapter 1938
3. ↑ Chapter 3675
4. ↑ Chapter 4169
5. ↑ Chapter 4621
6. ↑ Chapter 2087
7. ↑ Chapter 2098