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

"So, Xingyu, what exactly is this experiment you've been talking about all this time?" Wang Dong'er asked, puzzled.

Xu Xingyu smiled and said, "Gathering Spirit."

"Gathering spirits?"

"The so-called gathering of spiritual energy is to gather the spiritual energy of heaven and earth and endow something with its own spirituality."

Upon hearing this, Wang Dong'er asked in surprise, "Isn't that similar to the spirit forging technique you mentioned before?"

"Yes," Xu Xingyu nodded, "but there are still some differences. Please allow me to explain slowly."

After finishing her explanation, Xu Xingyu began her own.

The so-called soul bone is a bone that has fused with the essence of all the bloodlines of the entire soul beast. It is something that can only appear with a certain probability when the soul beast perishes.

Only those soul beasts that have successfully condensed their soul cores will drop their soul bones with a 100% success rate, and by that time, the soul beasts' cultivation levels have reached approximately 100,000 years.

The biggest reason why soul bones are regarded as priceless treasures by soul masters is not only because of their rarity, but also because the soul bone can still be removed from the body of the person who absorbed it after their death.

Then the removed soul bones can be used and absorbed by another person. Many families pass down their collection of soul bones from generation to generation in this way.

However, it's important to note that there's a limit to the number of times a soul bone can be fused.

The number of uses is mainly determined by the amount of energy contained in the soul bone itself.

Therefore, some soul bones may be passed down for hundreds or thousands of years before their energy is exhausted, eventually becoming a useless bone.

The three soul bones in Xu Xingyu's hands are of the type that are exceptionally well preserved and have very abundant energy.

However, these soul bones have a fatal flaw: the spirituality they possess has become dim and lifeless.

If a soul bone loses its spirituality, it means that the energy of that soul bone will also be quickly lost.

If no one fuses them together, then that soul bone will inevitably become useless within ten to thirty years.

Therefore, Yan Shaozhe had his own reasons for choosing these three soul bones for Xu Xingyu, since he couldn't say he had much affection for the Spirit Pagoda at that time.

After he overthought things, Yan Shaozhe wanted to take back these soul bones and replace them with better ones, but there was nothing he could do.

After all, this was tantamount to admitting guilt without being asked, so Yan Shaozhe simply decided not to bring it up.

In his opinion, the first thing Xu Xingyu would do after obtaining the soul bone was to give it to the three girls who were involved with him and let them fuse with it.

This way, his little scheme won't be exposed for a long time, and even if it is, he might already be long gone by then.

However, for Xu Xingyu, this soul bone lacking spirituality is exactly what he needs right now.

They originally had a specific technique at the Spirit Tower that allowed them to use soul bones to revive their owners as spirits.

However, this ritual cannot be performed by just any soul bone, which can resurrect a soul.

First, the soul bone itself needs to have extremely strong spirituality; second, the energy contained in the soul bone itself must be abundant enough.

Only under such circumstances is there a high probability of reviving the soul beast corresponding to the soul bone into a soul spirit.

However, unless the soul beast itself possesses sufficiently powerful strength and bloodline, such soul bones are usually...

What Xu Xingyu wanted to do was to use the necromancy techniques that Electrolux had taught him and the forging techniques he had learned to find a way to replenish the spirituality inherent in the soul bone itself.

This will not only revive more soul beasts as soul spirits, but also allow Xu Xingyu to experience more of the so-called true form of spirituality.

Through her understanding of spiritual formation, Xu Xingyu can also quickly achieve her goal of spiritual forging.

Although Xu Xingyu was able to successfully perform fusion forging, it was mainly due to the special abilities of her two forging hammers.

Moreover, the quality of the molten metal forged in this way is still in the thousand-forging level.

If Xu Xingyu were to not rely on the special effects of the forging hammer, then she could only progress to the first grade of the thousand-forging level, which is the half-step spirit forging level.

However, the Spirit Forging technique is extremely important to the Soul Guidance Department of the Spirit Tower. Without this technique, many projects of the Spirit Tower would be scrapped.

Therefore, if Xu Xingyu can successfully understand how spirituality is gathered through this spiritual gathering experiment, then he will be confident that he can successfully make a spiritual forge!

Given enough time, even the so-called higher levels of Soul Forging and Heaven Forging will no longer be a problem!

That's killing three birds with one stone!

It can not only perfect the soul beast resurrection ritual, but also find the secret of spirit forging, and allow those projects that have reached the limit to move forward again!

After hearing Xu Xingyu's explanation, Wang Dong'er's face was filled with admiration.

She never imagined that a few soul bones that would have been useless after a dozen years could be used in so many ways by Xu Xingyu.

If it were her, the only thing she could do would be to fuse it herself or have someone in her family fuse it as soon as possible, otherwise the soul bone would be wasted.

However, this made Wang Dong'er ask in confusion, "If that's the case, wouldn't it be better to just use the soul bones stored in our Spirit Pagoda?"

Faced with Wang Dong'er's question, Xu Xingyu scratched her head shyly and said, "Actually, I only recently came up with this plan, so I didn't prepare the soul bones for the experiment in advance."

"Originally, I was planning to message Gu Yuena to ask for a few soul bones to do this experiment, but Dean Yan just happened to send these three soul bones to me, so I might as well make good use of them."

"Ah, this..." Wang Dong'er could only sweat profusely and speechlessly think that her Xingyu brother was not as omnipotent as she had imagined.

At this moment, Xu Xingyu looked at the darkening sky and said, "It's getting late, let's get some rest. After all, we have to continue morning training tomorrow."

"Okay, I'll do it now... Wait, do we have to continue tomorrow?" Wang Dong'er looked at Xu Xingyu in horror.

It was clear she was starting to recall the grueling training she had endured that morning.

Xu Xingyu simply smiled and then began to wash up.

Having realized what was happening, Wang Dong'er chased after Xu Xingyu, shouting, "Couldn't you have gone a little easier? If you do it a few more times, I really won't be able to take it! Besides, wouldn't it be better if you could rest a little longer?"

"No way. You asked me to train you, so you have to finish it even if it's with tears in your eyes. I won't allow you to stay in bed." Xu Xingyu said nonchalantly, "As for me, don't worry. My mental strength is much stronger than yours, so even if I don't sleep for a week, it's no big deal. So sleeping only five hours a day for a month is not a problem for me at all."

"Wait a month?"

"Didn't I say? This training will continue until the new student assessment, which will take about a month in total."

Wang Dong'er's mind began to conjure up images of the month-long grueling training that was about to begin. Finally, she could only roar to the heavens, "No way!!!"

Fortunately, Xu Xingyu used her soul power to isolate the sounds inside the room beforehand, otherwise there would have been some kind of eerie wailing and howling messages at the school.