Each of these towering peaks is home to a fourth-level Spirit Vein, inhabited entirely by Celestial Immortal-level True Dragons, all embodying mythical templates.

As the two passed through these mountains, True Dragons occasionally raised their heads to look over.

Seeing this, Ao Ying introduced to Su Yu:

"Most of them are True Dragons from the Dragon Palace of East Victory Divine Continent, invited by my father to assist in battle, but they are only responsible for assisting in battle, not for attacking cities and seizing land. External warfare relies on our local Dragon Race of Qingcang."

"They mostly remain at Dragon Castle, but if you can pay enough, you can also invite them to take action."

Su Yu asked curiously:

"What price is required to invite them to take action? What is the highest level of True Dragon one can invite to assist in battle?"

"At least three major deeds; the stronger their power, the higher the fee: 350-level and above need four major deeds, 380-level and above need five major deeds, and if they are True Immortal, fifteen major deeds are required."

"Are there Profound Immortal-level True Dragons?"

Ao Ying turned around with a surprised expression and nodded:

"Of course, there are Profound Immortals. Besides my father, there are two Profound Immortal True Dragons from the Dragon Palace of East Victory Divine Continent at Dragon Castle. In theory, they can also be invited to take action, but the cost is too great, requiring at least 100 major deeds or equivalent resources."

"And this is just the invitation fee; the actual action depends on whether they are willing to act. Without the willingness to act, no amount is useful."

"Oh."

Chatting leisurely, the two soon traversed through the many peaks inhabited by True Dragons and arrived at the depths of Dragon Castle, seeing an Eight Desolates Dragon Turtle with a level as high as 485, mythical template, and a shell diameter of more than 500 kilometers sprawled between two mountains, with a massive palace surrounded by dazzling immortal light standing on its back.

Su Yu looked curiously at the gigantic turtle palace, asking:

"I see many people like to build palaces on the backs of giant turtles; why is that?"

"Nothing special, just for convenience of movement."

"Oh, indeed."

Ao Ying led Su Yu onto the turtle’s back and stopped in front of the great hall, where two Celestial Immortal-level crab generals stood guard at the door. Ao Ying bowed to Su Yu:

"Mr. Su, please wait, I will first meet with my father."

"Please."

Ao Ying strode into the hall, while Su Yu looked around before waiting outside.

About a quarter of an hour later, Ao Ying’s voice reached his ears:

"Mr. Su, quickly enter the hall, my father wishes to see you."

Su Yu stood up, tidied his robe, and strode into the great hall.

Passing through the light membrane into the hall, he was suddenly greeted by an open view; inside was not the grand hall he imagined, but rather another Grotto Heaven.

"Wow, this palace is actually a space-type immortal treasure."

Inside was a watery Grotto Heaven, with a vast expanse of water ahead, clear and transparent, filled with plentiful Spiritual Qi, and massive streams of Spiritual Qi rising from the seabed, like pillars standing in the sea.

In the depths of these Spiritual Qi pillars, Ao Ying had transformed into a golden dragon over a hundred kilometers long, coiling in the sea, but Su Yu’s gaze merely swept past him, instantly captured by the enormous figure enveloped by the entire Grotto Heaven’s Spiritual Qi behind him.

"Gasp!"

"What a large True Dragon."

Ao Ze (Mythical/Immortal): 584-level, Qingcang Dragon King.

His dragon scales were dark gold, his size astonishing beyond belief, making the nearly hundred-kilometer long Ao Ying beside him appear like a small earthworm.

Since successfully transcending the Celestial Human Tribulation through Supreme Dragon Transformation, his body had expanded; this was the first time Su Yu felt his own insignificance.

"Su Yu of the Dragon Race, pays respects to His Majesty the Dragon King!"

A gaze as if tangible descended from the sky, sweeping over Su Yu, from head to toe, inside and out, as if X-rays were penetrating him entirely.

In that instant, Su Yu felt that all his secrets were turned over by that gaze, exposed completely with no privacy.

However, this feeling came swiftly and faded just as fast; as soon as the thought arose in his mind, that gaze vanished, replaced by an immensely loud voice in his ears:

"Dragon lineage Su Yu, would you be willing to join Qingcang Dragon Palace?"

This question had been considered beforehand, and Su Yu nodded without hesitation:

"Su Yu is willing to join Qingcang Dragon Palace."

"Good!"

"In the name of Qingcang Dragon King, I grant you the privilege to traverse the four seas, the authority to lead the Aquatic Race, the Divine Techniques to command water armies, bestow a fourth-level top-grade Spirit Vein, and award you a slot to enter the Dragon Transformation Well once."

"Su Yu, you may choose to establish your own residence or affiliate under someone else’s name."

As these words dropped, Su Yu sensed a hint of tension from Ao Ying next to him, but he smiled slightly and nodded in indication, saying:

"I am willing to affiliate under Brother Ao Ying’s name."

As the words fell, Su Yu noticed Ao Ying breathe a sigh of relief.

"Very well!"

The Qingcang Dragon King, enormous beyond imagination, slowly moved in the depths of the Grotto Heaven, raising a dragon claw and pointing towards Su Yu, causing the nearby seawater to swirl into a gigantic whirlpool. The whirlpool’s mouth transformed into a portal, emitting an indescribable aura that caused Su Yu’s blood to suddenly boil.

"What is this?"

"This is the Dragon Transformation Well, a clan treasure capable of refining Dragon Race bloodlines and enhancing potential. Non-dragon races washed by the Dragon Transformation Well can directly transform into True Dragons."

Ao Ying whispered in Su Yu’s ear:

"Usually, only direct blood descendants of the Dragon Palace have the qualification to enter the Dragon Transformation Well. Outsiders wanting to enter must establish great deeds first. Mr. Su obtaining the opportunity for the Dragon Transformation Well from my father right away is extremely rare."

"I see."

Su Yu pondered briefly, then suddenly spoke:

"Majesty, I wish to give this opportunity to my Dao companion. I wonder if it aligns with the rules."

Ao Ying was taken aback, whispered:

"Mr. Su, this opportunity is rare, how could you..."

"Agreed!"

Su Yu smiled and said to Ao Ying: