"So, what do you want to achieve within this realm with me?" the Wood Xuan Wu speaks above Gou Yu's head.

"I want to get stronger!" he answered the question with a short sentence.

"No matter what is the price?" Wood Xuan Wu asked once more.

"No matter as long I will get stronger!" he answered again.

"So..."

"I want you to pay me with fifty drops of your Water and Earth Pure Essence." the Wood Xuan Wu speaks out his prices to help him.

"What is that Water and Earth Pure Essence?" Gou Yu face filled with an empty expression.

"This treasure comes from the Xuan Wu's across the globe."

"What I will teach you, will be the secret art belonged to myself, created after revising it from a failure after another."

[Elemental Growth Classic]

"Isn't the name amazing?" the Wood Xuan Wu announce the name of the Art he created.

"Yes..." Gou Yu is speechless, but he can't help but agree with the tortoise.

"Then be ready, the starting is a hard part..."

"Then the harder part..."

"Then even harder..."

The two later spend one full day to exchange and learn the Elemental Growth Classic and on the second day, Gou Yu executes whatever he learned. Compared to Nan Jing Jing, his training is less challenging, but reality sometimes hurt.

This Elemental Growth Classic is suitable for Gou Yu to temper his foundation using a method suitable for Saint Beast.

Although the profoundness of this art is higher, for first-stage foundation cultivator alike Gou Yu, this training deviates from hell.

The two elements, Water and Earth within his body forced to mix to form a new kind known as Water and Earth. It sounds as if two name fits together, but in term of strength, they aren't.

The power and strength of this new source are five times stronger, and one time more sensitive than ever.

But the state of this new form source is fragile, it cause Gou Yu to use these to temper his foundation, so he can form a better one.

This repeating procedure goes one after another, and from each try, it builds up Gou Yu's foundation in both Water and Earth.

"I see that this kid understands the speciality of his constitution." the Wood Xuan Wu looked at the cultivator before him and smiled.

In elemental foundation, although the elements are important, the understanding is even deeper.

Compared to Long Feng's Fire and Wood elemental, which compliments with each other during a fight, and the Sky elemental, that harmonize everything.

Or compared to Nan Jing Jing's Water, Earth, Metal and Lightning Elemental that increase her potential, Gou Yu is nowhere capable to stands beside them.

But what he has, is the supporting effect of his Water and Earth elemental!

This trick can only do if used by a cultivator possessing only Water and Earth Elemental within his foundation.

By using the strength of Earth's creation and Water's nourishment, Gou Yu able to create an unlimited nourishment from his body straight to temper himself by removing the needs to absorb the water and earth essence within the air.

This way, his progress can only describe as using one word, cheating.

Without bothering about the first preparation such as refining and purifying the elemental essence before entering his body, the progress is so much quicker than how a normal person should be.

Added with the speed he tempers his body while repeating the same procedures once again, he turned into a converter of Water and Earth Elemental Essence.

If the Thousand Training Formation Cave's Grand Room gave a result of 25% increase in cultivation, then Gou Yu's Elemental Growth Classic is comparable to stacking ten Grand Room in his own body.

One more day passed.

Gou Yu current strength is at peak of the first stage in his Water Elemental foundation while his earth elemental foundation is stabilizing into excellent affinity.

At the moon phase before the end of day 5, Gou Yu stops from continuing.

He takes a look at his changes in overall.

Gou Yu wave his hands in a spontaneous way, creating a wall of water mirage.

He channels the of the Water Elemental next on his fingers, creating ten droplets of water gather at his fingertip.

"Clear Water Stage! Heavy Droplet Strike!" Gou Yu aims at a direction as he swings both hands to launch the ten droplets.

While at the direction he was attacking a metal board appeared out of nowhere as it faces the attack from Gou Yu.

"Pring!"

"Pring!"

Each time a droplet hit the metal board, it creates an ear-deafening sound.

Next, four swords formed from thin air and strike towards Gou Yu's direction.

"Water Phantom!"

The four sword strikes at the Gou Yu who did not move from the spot.

But instead of piercing through, the four swords stuck on the body which wobbles like a bubble.

"Wood Xuan Wu, you are full of opening!" Gou Yu shouts as he swings a kick towards where the tortoise stands.

"Dream too much!" the tortoise vanished from the spot and appeared at another second later.

"Am I still dreaming too much?" Gou Yu wave his hand for a moment while Wood Xuan Wu saw he is standing within the Clear Water Prison created by Gou Yu.

"A prison made with Water Foundation?"

"Don't forget that I am Wood Xuan Wu! Your elemental will bring no effect on me!" the tortoise swims within the prison as it tried to suck in all the surrounding water.

"I invite you to try." Gou Yu still confident with his Clear Water Prison.

Few second later, Wood Xuan Wu understands what spot he got himself.

Water that doesn't behave like a liquid. The solid earth that doesn't appear solid at all.

The Wood Xuan Wu realized that he nurtured a dangerous being that can use the Water and Earth Element into such profound stage.

A minute later, Gou Yu released the Wood Xuan Wu from his Clear Water Prison as they continue.

"Skinning Diagram, Confining Diagram!"

"Stripping Diagram, Swallowing Diagram!"

"Leading Diagram, Following Diagram!"

"Six Diagram overpowered Soldier, defeat the enemy before you!" the Wood Xuan Wu prepares the final test for Gou Yu.

"Master... Thank you." Gou Yu put his hand together to give the Wood Xuan Wu a bow before he prepares to fight against the six golden soldier.

Half an hour later, Gou Yu appeared to where they located before he went into the Void Space.

It looks like Gou Yu has benefitted the most from his training, because his Water Foundation is at its peak of Clear Water Stage, while his Earth Foundation is at its Peak of Hard Earth Stage.

He sits on top of the floating formation next and prepares his both hand to creates a masterpiece.

The gathered Water and Earth Elemental surrounding him intensifies, as he creates, absorb, and release them.

This action soon creates a thick cloud of essence surrounding him as he gathered them to form a translucent water droplet.

The droplet solidifies and appeared to be a mix of two different colour, an Azure blue with a hint of marbling from the brown.

Gou Yu use his hand to catch that piece of Water and Earth Pure Essence.

Questions with the success of his creation, Gou Yu tried to assimilate it on the spot and got shocked with the results.

Then, the Wood Xuan Wu appeared by his side.

"This is one treasure many sought. It has many kinds of name, but the one often mentions by the cultivators is as the Dual Element Pure Essence."

"If people see your ability to create such a treasure, you will become their golden goose on spot."

"Because no matter how, as long you create this treasure, your foundation will strengthen along, making you undefeatable among your peers."

"Now, my golden goose, you promise me 50 drops of this Dual Element Pure Essence." Wood Xuan Wu smiles as he looked at Gou Yu.

Now, only Long Feng left.

"Wood Xuan Wu, why am I not learning these skills too? I hold four elements, you know?" Nan Jing Jing surprised with Gou Yu's special trick he had just learnt, and she too wants to practice that too.

"Unfortunately, this skill can only use by him, because of his elements compliments against each other. Although you got Water, Earth, Lightning and Metal elements in hand, but if you tried to create the same thing like him, your effort will only end with something neither two, nor neither four elements in a complete piece."

"Plus one more reason. You hold too many elements with you."

"Where can you source your Essence energy?" Wood Xuan Wu's word actually contains some fact and reason within.