Derivation Gu

Derivation Gu was a naturally refined, legendary Rule Path Gu mentioned by Legends of Ren Zu as core gu which allows him to derive his children's corpses and himself to create batch of modern human descendants.

## Ability

Derivation Gu's core ability when activated by itself is unknown as it was always seen harnessed using formations and other methods (with possible exceptions being the record in Legend of Ren Zu). One constant within its usage was the ability to derive certain outputs based on certain inputs, which can range from forcefully creating new inheritances, creation of modern humans, and even potentially deriving the answer to eternal life itself.

## Legends

### Part 1 (First Version - Chapter 181)

Ren Zu’s ten children died one by one, and Ren Zu was about to die of old age. But at the end, Ren Zu gathered the corpse of his ten children and sacrificed himself, all going into the stomach of the Derivation Gu. Derivation Gu’s stomach burst, exploding and countless life spreading across the land, creating the first batch of mortals. These mortals did not have Ren Zu or the ten children’s talent, but they could cultivate after awakening their aperture. Humanity thus grew and developed, forming today’s size. Of course, that is all a mythological story.

### Part 2 (Second Version + Extra - Chapter 730)

At the end of <<The Legends of Ren Zu>>, it said Ren Zu's ten children died one after another, even Ren Zu himself was going to die of old age, he was at the end of his life. Before dying, Ren Zu retrieved the corpses of his ten children, and sacrificed himself, sending them all into Derivation Gu's stomach, eaten by it. Large amounts of Dream Realms also followed the smell of the delicious food, going into Derivation Gu's mouth along with them. Derivation Gu's stomach was burst open, as countless light of life shone on the lands, creating the first batch of mortals. Because the Dream Realm was involved in the derivation, the first batch of mortals would experience dreams when they slept at night. Humans often sink deep into dreams, like Northern Dark Ice Soul, and are unable to free themselves from it

### Part 3 (Third Version + Extra - Chapter 1176)

Towards the end of <<The Legends of Ren Zu>>, after the seven heavens broke, Ren Zu’s ten children died one by one, and Ren Zu was about to die of old age. But at the end, Ren Zu gathered the corpses of his ten children and sacrificed himself, all entering the stomach of Derivation Gu. Derivation Gu’s stomach burst, exploding as the light of life spread across the land, creating the first batch of mortals. These mortals did not have Ren Zu or the ten children’s aptitude, but they could cultivate after awakening their aperture. Humanity thus grew and developed, forming today’s size. During this process, ten Rank 9 Venerables were born, each of them led their own era and left deep marks on the world. Eventually, today’s situation in the five regions was formed.

## Trivia

* There is story about Derivation Gu in the Limitless Demon Venerable's page.
* Derivation Gu will become useless if refined by a person, hence it must be harnessed as wild gu.
* Three Crazed Demon Eccentrics believe Limitless Demon Venerable refined this gu and used it as core for his Crazed Demon Ninth Void Formation, this turns out to be partially false since it would be useless once refined by a cultivator, hence it must be harnessed as wild gu.

1. ↑ 1.0 1.1 ch. 1176
2. ↑ ch. 2274
3. ↑ ch. 2291