Under the cover of Wang Kai's soul power, this dazzling crystal with a flawless body and a faint fluctuating colored mist inside shone brightly, and then slowly flew out of Wang Kai's hand and came to the top of his head.

The next moment, this dazzling crystal suddenly burst at the top of Wang Kai's head, making a crisp sound of "pop", and streams of incomparably rich colored mist poured straight down from the crystal, enveloping Wang Kai's whole body in it.

With the colorful mist gradually thickening, Wang Kai's eyes gradually lost the trace of the cultivation room, leaving only a beautiful and fantastic colorful scene, at this time, the Chaos Mountains and Rivers Ding also condensed in front of Wang Kai's body, and a circle of colored halos began to appear around Wang Kai, and frantically rushed to the Chaos Mountains and Rivers Ding in front of him, at the same time, a terrifying pressure also instantly enveloped him!

Just like the process of absorbing the soul ring of the soul beast, using the adaptive 100,000-year soul ring will also bring great pressure and pain to Wang Kai, and the pain Wang Kai endured this time is even far greater than the total pain he had suffered when he fused the first three soul rings!

Although this adaptive 100,000-year soul ring is a magical prop derived from the infinite martial soul system, compared to the process of fusing the soul master's soul beast soul ring, countless optimizations and improvements have been made, which can be described as much softer, and the pain caused to the soul master has also been reduced dozens of times, but, after all, this is a 100,000-year level soul ring!

In the Douluo Continent, most of the soul saint and soul emperor level soul masters have 10,000-year soul rings, and even some genius soul masters may obtain 10,000-year soul rings at the Soul King or even lower level, but those soul masters who can have 100,000-year soul rings are still rare in the Douluo Continent!

In addition to the future Shrek Seven Monsters, Wang Kai estimates that there are probably no more than one soul master with a 100,000-year soul ring on the Douluo Continent at present!

You must know that in addition to a special soul beast like the Heavenly Dream Ice Silkworm, even the weakest 100,000-year soul beast, their strength is comparable to that of a ninety-five-level Peak Douluo!

In addition, the vitality of a 100,000-year soul beast is also extremely strong, even if it is a peerless Douluo like Qiandaoliu, or several Titled Douluo besieging it together, it will defeat at most a 100,000-year soul beast, and it is difficult to kill them, let alone obtain a soul ring.

When the cultivation of soul beasts reaches 100,000 years, they have wisdom comparable to that of humans, and when they are seriously injured, they would rather choose to blow themselves up and die than leave a soul ring for the soul master who killed them!

Therefore, although there are currently several soul masters with 100,000-year soul rings on the Upper Douluo Continent, most of their soul rings are not obtained by killing 100,000-year soul beasts, but through methods such as God-given soul rings, God-given age increases, and voluntary sacrifices of soul beasts.

Of course, although the 100,000-year soul ring is extremely rare, and the difficulty of obtaining it is difficult to reach the sky, compared to the 10,000-year soul ring, the 100,000-year soul ring brings two infinitely powerful soul skills to the soul master!

It was precisely because of the power of the 100,000-year soul ring that although Wang Kai's physique and soul power had improved many times compared to the past, when he began to absorb this adaptive 100,000-year soul ring, the pain he faced was still doubled compared to the past!

Therefore, for Wang Kai, the process of absorbing this 100,000-year adaptive soul ring is both an opportunity and a challenge!

Once Wang Kai was unable to withstand the pressure and lost consciousness when fusing the adaptive 100,000-year soul ring, then the fusion process would be urgently interrupted, and in the end, all he would get was a powerful 100,000-year soul ring, not a qualitatively changed 100,000-year soul ring!

In the face of the ubiquitous terrible pressure brought by the adaptive soul ring, Wang Kai could only get rid of all distractions, gritted his teeth, and fought the most tenacious struggle against the pressure and pain of the whole body!

Now, for every second he can hold, the number of years of the soul ring he can finally obtain will increase by one point!

Under the inhuman pressure and pain, Wang Kai only lasted about twenty minutes, and his body was completely wet with sweat, and his face showed an extremely painful expression!

However, if Wang Kai wanted to successfully fuse this 100,000-year soul ring, he would need to persist under the pressure for a full hour!

With the passage of time minute by minute, Wang Kai also felt that the pressure on his body increased little by little, even an ordinary soul king may not be able to withstand such pressure!

Fortunately, Wang Kai fused the two powerful god-level martial souls of Shura Emperor and Chaos Mountain and River Ding, and greatly improved his physical fitness under the power of the martial soul, otherwise, ordinary soul venerables would not be able to withstand such pressure at all!

"Gan! I'm still too confident! In the face of such terrible pressure, as strong as Wang Kai, the capillaries of his whole body began to collapse and burst, and the skin of his whole body was covered with countless hideous bloodshots!

"It can't be like this anymore! By the way, why don't you try to borrow the power of my martial soul to resist the pressure! Feeling the imminent collapse of his body, Wang Kai suddenly had a bold idea in his heart, and with a quick thought, the Shura Emperor Martial Spirit behind him suddenly appeared, and an incomparably rich blood-colored power appeared in the space, resisting most of the pressure outside his body!

Suddenly, Wang Kai only felt that the pressure on his body suddenly lightened, and the color of his skin gradually returned to normal from blood red.

But as time continued to pass slowly, although Wang Kai had summoned the Shura Emperor to protect him, he still felt that the pressure on his body was surging again and again, and his bones began to twist and deform because of the heavy pressure, and the pressure of the mountain seemed to be about to completely overwhelm him at any time!

However, at this time, there was still a full ten minutes before Wang Kai could perfectly absorb the 100,000-year adaptive soul ring!

"Oh no, am I really going to fail?" The Shura Emperor Martial Soul behind Wang Kai also began to slowly blur because of this terrifying pressure, his brows were furrowed, and his facial expression was extremely hideous, but he was powerless against the fact that he was about to fail.

Just when Wang Kai was about to lose his consciousness and lose consciousness, suddenly, the chaotic mountains and rivers in front of Wang Kai "buzzed" for a while, emitting a mysterious fluctuation, and a stream of dark yellow breath surged towards Wang Kai's body!

"What is this?" In Wang Kai's astonishment, the mysterious fluctuations spread rapidly, condensing an invisible barrier around Wang Kai's body, Wang Kai only felt that the pressure on his body was instantly reduced, and he returned to the range of bearing.

At the same time, a stream of dark yellow aura also diffused in Wang Kai's body, and as soon as Wang Kai's bones touched this breath, they began to absorb it frantically, and it continued to be strengthened, becoming more flexible and hard.

"Great! It is worthy of a divine martial spirit! Sure enough, there is no end to it! Wang Kai's eyes flashed with joy, and he thought secretly in his heart.

Another ten minutes passed, and Wang Kai only felt that the pressure on his body finally began to decline rapidly, and the colored mist around him gradually faded, revealing the extremely familiar cultivation secret room in the outside world.

A few more minutes passed, and the colored mist around Wang Kai had completely disappeared, and at this time, a red halo was slowly floating behind him, looking extremely solemn and eye-catching.

100,000 Year Soul Ring, Wang Kai, he succeeded!