I am the son of the Dragon God in Douluo Continent.

After dealing with the matters of the Star Dragon Tower and the Divine Dragon Pool, Xu Xingyu turned to the four Dragon King Soul Bones and four Dragon King Cores floating in the air.

Why were there five dragon king skeletons, but only four soul bones and four dragon cores were left? That's because Xu Xingyu had already obtained the soul bone and dragon core of the Earth Dragon King through the sacrificial artifacts of the Five Elements Dragon Clan.

Xu Xingyu decided to store the dragon pills in the Star Dragon Tower, since he knew he had already acquired most of them in the future Star Dragon Tower.

The Dragon King's soul, which had been integrated into the Star Dragon Tower, did not completely dissipate. With the help of the Dragon Pill, they were able to last even longer.

As for what to do with the remaining soul bones, it goes without saying. Although Xu Xingyu really wanted to fuse them all, after all, with the existence of the Star Dragon Tower and the Dragon Pill, even without the help of soul bones, those dragon kings and dragon souls should be able to maintain themselves for hundreds of thousands of years.

However, before arriving here, he had already fused the right palm bone of the Light Dragon King and the torso bone of the Mountain Dragon King, so he also put the soul bones of these two dragon kings into the Star Dragon Tower.

This left Xu Xingyu with a total of three Dragon King Soul Bones: the left arm bone of the Earth Dragon King, the right leg bone of the Wind Dragon King, and the pupil bone of the Time Dragon King.

Once he fuses these three Dragon King Soul Bones, along with the Dragon King Soul Bones he has already fused (Fire Dragon King's right arm bone, Water Dragon King's left leg bone, Mountain Dragon King's torso bone, Dark Dragon King's left palm bone, and Light Dragon King's right palm bone), he will have all six major Soul Bones except for the head Soul Bone.

What puzzled Xu Xingyu was why the Space Dragon King's soul bone wasn't in Dragon Valley. In the original story, he remembered it should have been here.

Could it be that there's something wrong with the remains of the Space Dragon King? This puzzled Xu Xingyu, but for now, she should focus on fusing the Dragon King's soul bone.

Xu Xingyu looked at Gu Qiuxi and said, "I'm sorry, I'll have to ask you to protect me for a while."

Gu Qiuxi simply shrugged and said, "It's nothing, I'm used to this. Anyway, we can absorb dragon clouds here to replenish our qi and blood, so we don't need to look for food at all."

"Then I'll leave it to you."

After giving Gu Qiuxi her instructions, Xu Xingyu began fusing the Dragon King's soul bones. In about an hour, Xu Xingyu completed the fusion of the three Dragon King's soul bones, which was even faster than the last time.

Even after Xu Xingyu fused with the three Dragon King Soul Bones, he still had no intention of ending his seclusion. The immense blood and qi power belonging to Xu Xingyu began to gather in his chest.

Seeing this, Gu Qiuxi immediately came to the rescue. Although she had never done it, she could still recognize that Xu Xingyu was planning to condense a second soul core in her chest, and it was a blood and qi soul core!

This immediately piqued Gu Qiuxi's interest, as she knew that the first soul core she planned to condense was also a Qi and Blood Soul Core, so this observation would also be helpful for her future soul core condensation.

Under Xu Xingyu's instructions, the enormous power of qi and blood was ruthlessly compressed until it changed from its original fluid state to a solid state.

At this moment, the spiritual core that had been quietly resting between Xu Xingyu's eyebrows began to surge violently as if disturbed, and the blood and qi core that was forming was impacted.

In order to maintain the nascent Qi and Blood Soul Core, Xu Xingyu diverted a portion of her mental energy to forcibly control the riots of the Spirit Soul Core. However, this only lengthened the intervals between the riots and did not completely solve the problem.

This phenomenon is an obstacle that every Soul Master will encounter when condensing a second Soul Core. The only solution is the previously mentioned method of resonance and Yin-Yang complementarity.

Xu Xingyu is an extremely demanding person. If she is going to do something, she must do it to the best of her ability. Therefore, Xu Xingyu gave up the relatively simple method of resonance and chose the more difficult method of yin and yang complementarity.

Soon, two vortexes of soul power, or rather, vortexes of magic power, formed in Xu Xingyu's body. They began to constantly clash with each other, like two tigers that cannot share the same mountain.

Honestly, if Xu Xingyu's body hadn't been strong enough, such an energy collision could easily have destroyed her.

However, Xu Xingyu's physical body had long since reached the god-level. Such an impact, while not even a tickle, wouldn't cause him much harm. Even if it left some hidden injuries, his self-healing ability could repair them.

Now that the Qi and Blood Soul Core has been completely constructed, the next step is to ensure that the Qi and Blood Soul Core follows a completely different trajectory from the Spirit Soul Core. Only in this way will the two soul cores operate like gears, forming the so-called Yin and Yang complementarity.

In this process, Xu Xingyu must perfectly control the power of the first soul core to prevent it from interfering with the trajectory of the second soul core, and at the same time, she must also prevent it from being destroyed by the new trajectory of the second soul core.

This is not a task that can be accomplished simply by relying on physical fitness; on the contrary, it requires more mental strength.

Even though Xu Xingyu possesses god-level mental strength, the energy contained in his condensed soul core is not simple.

Although the spiritual core was formed with the assistance of lightning, it contains extremely pure starlight power, which is the spiritual core formed with the power of destiny as its foundation. It is the power that Xu Xingyu, as the first imperial auspicious beast in her previous life, mastered.

The Qi and Blood Soul Core at the chest is not formed by simply condensing Qi and Blood power, but rather by the radiance of the sun, symbolizing the destructive power of the Dragon God.

As for the remaining dantian, Xu Xingyu planned to use the Moon's Radiance as a foundation, that is, the power of creation, when he broke through the limit and condensed the third soul core.

While a soul core condensed using such a law would far surpass that of a normal person, the conflicts between soul cores would also increase.

Otherwise, his father, the Dragon God, wouldn't have used a method similar to schizophrenia to control his two major soul cores to ensure that he wouldn't be destroyed and die from the destruction and creation.

As time went by, Xu Xingyu felt the different forces from the two soul cores intertwining and colliding within his body.

The stellar power contained in the spiritual core and the sun-like brilliance of the blood and qi core surged and turbulent within his body like two enormous torrents.

At first, Xu Xingyu felt an imbalance of power, as if two forces were fiercely clashing within her body, trying to destroy or dominate each other.

Fortunately, relying on his god-like spirit and blood, Xu Xingyu completely ignored the pain brought to him by this confrontation and firmly controlled this fierce battle.

His mental power was like a pair of five-pointed stars, skillfully manipulating the two energies and gradually bringing them to a balance. He knew that once it was out of control, the collision of these energies would have devastating consequences.

As time went by, the difficulty gradually increased, but Xu Xingyu did not give up. He focused intently on regulating and balancing the two energies, constantly adjusting the precise control until he finally achieved perfect yin-yang complementarity.

As the last discordant note dissipated within him, Xu Xingyu felt an unprecedented surge of power flow into her body. The power of the two soul cores fused perfectly together, forming a completely new energy form.

The Yin-Yang complementarity method has been successfully implemented! The second soul core, Qi and Blood Soul Core, has been successfully condensed!