Half a day later, in a canyon, the four of them found the thorn demon tree that was more than 90,000 years old.

Although the approximate location of the more than 90,000-year-old plant-based soul beasts in the Star Dou Great Forest had already been marked on the map by the masters of the Seven Treasure Colored Glass Sect, because there was no satellite navigation and there were not many references, it took a lot of effort for the four of them to find it.

This thorn demon tree, the whole body is dark green, and the size is much smaller than the azure willow tree before.

The height of the canopy is more than 100 meters, and the lower part has only a dark green trunk, while the upper part, with dense branches, is covered with spikes about a foot long.

Countless spikes make people shudder at first sight, if they are slapped right by this thorn demon tree, they will definitely be covered with blood holes.

Subsequently, Ning Rongrong threw a god-level exploration technique at the Thorn Demon Tree from a distance, and found that its year was more than 94,000 years, and if there was the help of Living Soul Yan, it was estimated that it would take about 20 days to advance to the 100,000-year year.

Without much delay, the Soul Flame flew out and landed on the Thorn Demon Tree.

"Dad, the age of this thorn demon tree is not very high, it is estimated that it will take about 20 days to advance to a hundred thousand year vintage." Ning Rongrong said to Ning Fengzhi.

"Well, it doesn't matter, 20 days isn't long." Ning Fengzhi nodded, but he didn't care much, it was just 20 days.

Anyway, the affairs of the sect, he had already arranged them in advance before coming to the Star Dou Great Forest, and it was not a big deal to stay in the Star Dou Great Forest for a few more days.

Three days later, Ning Fengzhi's soul power level broke through to level 90 Quasi-Title Douluo as he wished.

However, the current Thorn Demon Tree has not yet advanced to the 100,000-year year, so it can't immediately advance to Title Douluo.

...... The days in the Star Dou Great Forest were boring, and Ning Rongrong could only use cultivation to pass the time.

Fortunately, after advancing to the Soul Emperor, not only must you cultivate your soul power, but you can also cultivate the sixth level of the Dragon Elephant Prajna Gong and the Ice Heart Technique.

The cultivation time passed quickly, and in a blink of an eye, it was the 20th day. After noon, the Thorn Demon Tree in the distance made a lot of movement.

Ning Rongrong sensed that the soul power in the surrounding heaven and earth had formed a funnel-shaped vortex of soul power, which was rapidly converging.

Obviously, this Thorn Demon Tree has taken a crucial step and started to advance to a hundred thousand year soul beast.

"Got started? Dad, I'll use the Italian cannon for you later! Ning Rongrong said to Ning Fengzhi.

"Hmm." Ning Fengzhi nodded, with a powerful Italian cannon, he naturally wouldn't let it go.

It's Chenxin and Gu Rong, who always feel that the two of them are in vain. Of course, in fact, the two of them didn't come for nothing, after all, if there were only two people, Ning Fengzhi and Ning Rongrong, staying in the core area of the Star Dou Great Forest for so many days, the danger would still be not small.

These days, there are also many high-level soul beasts, who have come to the camp to look for food, and even ninety-thousand-year-old soul beasts have appeared, if it weren't for Chenxin and Gu Rong to send these soul beasts, it would be impossible to say that Ning Fengzhi and Ning Rongrong would have become a lump of poop now.

It didn't take long for the vision in the sky to dissipate, and the Thorn Demon Tree in the distance successfully advanced to the 100,000-year year year and became the Thorn Tree Emperor.

So far, Ning Rongrong's Soul Yan has helped six 90,000-year-old plant-based soul beasts advance to a 100,000-year year, and there has never been a situation where they cannot advance.

'Could it be that every plant-based soul beast can advance for 100,000 years with the help of the Soul Yan? Ning Rongrong secretly thought to herself, and even she guessed that if there was a plant-based soul beast that obtained the Yan of Life, it might not be possible to advance to the god level in the future.

After all, in the Doupo World, the level of the Soul Yan is not low, and it is above the gods of the Douluo Continent.

Of course, this didn't happen, and Ning Rongrong didn't know if the Yan of the Living Soul could make a plant-based soul beast transform into a plant-based divine beast.

Seeing that the Thorn Demon Tree had already advanced, Ning Rongrong recalled the Yan of the Living Soul. At the moment when Soul Yan was recalled by her, the Thorn Tree Emperor, whose level of wisdom was comparable to that of a human being, instantly became furious.

It's still thinking that with the help of this magical flame, it can advance to become a fierce beast! Unexpectedly, he had just advanced to the 100,000-year year, and he actually flew away inexplicably.

However, when it discovered the level 90 Ning Fengzhi, it immediately understood, no wonder there was a pie in the sky, it turned out to be given by these humans in front of it.

Moreover, these human beings are still hungry for the soul rings and soul bones on their bodies, otherwise human beings are not so kind and help themselves to advance to become a 100,000-year soul beast.

Although it is a rage, this Thorn Tree Emperor is just an impotent rage, because it has no long-range attack ability, as long as it stands outside its maximum attack range, it will be nothing.

More than a mile away from the Thorn Tree Emperor, Ning Fengzhi adjusted the muzzle of the cannon and began to instill soul power into the Italian cannon.

Soon, the concentrating soul guide array in the cannon was triggered, and it began to automatically gather the soul power in the surrounding heaven and earth to condense the cannonballs.

The dust heart and Gu Rong on the side also paid twelve points of attention to prevent the Thorn Tree Emperor or unknown soul beasts from coming to sneak attack.

The Italian cannon began to gather soul power on a large scale, and although the Thorn Tree Emperor's brain was not very bright, he could also know that the few humans in front of him were definitely about to magnify their moves, and immediately released a layer of defensive barrier to envelop themselves.

It's a pity that at this time, it has no way to take Ning Rongrong and the others, it lacks long-range attack ability, and can only defend passively.

If a plant-based soul beast wants to move its body, it needs to advance to become a fierce beast, or transform into a human being.

But it can't do either of these premises. Now it is only 100,000 years old, and it is still far from the fierce beast, and turning into a human is a dead end.

If it doesn't transform, it still has the strength of 100,000 years, and if it transforms, it will be powerless.

After half a minute passed, the Italian cannon was fully charged and ready to be fired at any time, and Ning Fengzhi immediately pulled down the cannon rope.

With a sound of "bump~", the shell immediately burst out of the chamber of the Italian gun. The distance between the two sides is so close, and the size of the Thorn Tree Emperor is so big, there is no problem of not being able to hit.

"Boom~" The fire flashed, the earth and gravel splashed, the ground shook the mountains, and the layer of defensive barrier on the Thorn Tree Emperor was like paper paste, and it was directly exploded by the powerful power of the cannonball explosion in an instant.

After a long time, when the smoke and dust dissipated, I saw a large pit with a radius of dozens of meters in the distance, and the Thorn Tree Emperor was right in the center of the pit.

At this time, the main trunk was scorched black, and most of the branches disappeared, and it was completely impossible to see the previous appearance.

Suddenly, countless golden rays of light emerged from the body of the Thorn Demon Tree, gradually condensing into a red 100,000-year soul ring.