Although he decided to wait, what Roy didn't expect was that he had to wait for three years!

Yes, it's three years! Even though Roy knew that the fury might be going to a different space with a time flow rate completely different from the Overworld, such a long wait still made Roy a little crazy.

In his words, if he could have offspring with Juliel, then his children would be able to use magic for three years......

However, what made Roy feel speechless the most was that Julielle didn't feel anything about the passage of these three years, Roy felt that it was a long time, but Juliel felt that it was just a blink of an eye, every time Roy talked to him about the topic of time, she always looked at Roy with a very surprised gaze, and said: "It's only been three years, it's normal for such a short period of time, and it's normal for the fury not to come back!" ”

"......" At this time, Roy felt speechless.

Of course, he also knew that for the immortal species, three years was indeed a very short time, and for them to feel that the time was long, it must be possible in a hundred years.

Some demons can sleep for hundreds of years, or even thousands of years, until they are woken up by some guy who doesn't have long eyes, and those legendary stories in the human world are written like this, in a sense, this way of describing is really not an exaggeration.

Now that he understands this, Roy doesn't have to worry about it.

In the past three years, Roy has not been idle, he took Juliel to find a place to stay, found a relatively intact human building as a residence, and then enslaved a group of low-level demons nearby to collect souls for them.

Although the human race in this main world is almost extinct, it doesn't mean that there is no soul production, after the nuclear weapons launched by humans have exploded in various parts of the world, the nuclear winter effect is slowly weakening over time, so some animals and plants are slowly waking up, and the irony is that after the existence of the biggest natural enemy of human beings, other creatures on this planet are thriving better!

Even if the number of demons entering this world is huge, but no matter how large it is, it is not comparable to the human population base on the original planet, when billions of human beings are almost extinct, their demand for food in this world and their demand for food in this world has reached the lowest point in an instant, without the influence of human activities, the pressure on the survival of animals and plants has been reduced at once.

In the past three years, Roy has almost witnessed the world from the beginning of the silence to become vibrant again, but those creatures that survived the nuclear winter have more or less mutated and evolved, their size has become larger, and their appearance has become more bizarre, but even so, they are still creatures of this world, and after a short period of adaptation, a new food chain is being formed.

If Roy were a poet or an artist, he might have been moved to tears by nature's ability to regulate itself, but alas, he wasn't, and although he was shocked, he took it for granted.

When he was a human in his previous life, Roy himself didn't feel anything, but now when he becomes a demon and looks at humans from another angle, Roy doesn't know what to say, human beings are creatures, how to say it, it's great! They can use thousands of years to transform nature step by step, and eventually become the overlord of the food chain, and create a splendid history and culture, but at the same time, human beings are so demanding, they are like cancer cells, constantly multiplying people, constantly destroying the balance of nature.

It's not that Roy doesn't stand on the side of the humans, in fact, even the humans themselves know that if they continue like this, they will destroy themselves, and there is no need for any battle of Doomsday Judgment at all.

They also seem to be aware of this, and it is precisely because of this vigilance that there will always be all kinds of terrible disasters in various movies and movies of mankind, but because these and movies themselves are made up by human beings, in the end, almost all of them are won by human beings and survived......

However, in this world now, it is not something and movies, the appearance of angels and demons directly knocked down human beings with a single stick, and their imaginary resistance and final victory did not appear......

Losing the figure of humans, the animals and plants on this planet are reactive, and the plants are nothing, but those mutated animals have now become the best choice for the demons to hunt souls, it seems that because of the radiation mutation, the originally weak animal spirits of these animals have grown a lot, although they are still not as good as human souls, but for the demons, it is better than nothing.

However, due to the mutation, these animals, plants, and insects have shown more powerful combat power than before, and even when facing some lower demons, the lower demons will in turn become their hunting targets.

Not only that, but there are also some animals on the battlefield to devour the corpses of those angels and demons who died in battle, as we all know, the blood of demons is something that can infect other creatures, and similarly, the blood of angels also has a similar effect, so when these animals eat the flesh and blood of demons and angels, new changes appear, and as time goes by, demonic creatures similar to the abyss world gradually began to appear in this world, as well as some actinized creatures that can use weak light power.

In just three years, the planet has become unrecognizable, and if a person who is new to this world looks at these strange species and those landscapes that have become strange due to radiation contamination, I am afraid that they will never think that this is the earth......

Roy and Juliel occupied a piece of territory, instructing those low-level demons to go out every day to hunt these mutated creatures, and when the low-level demons brought their souls back, he set aside a part of the reward for these low-level demons, and the rest was used to cultivate magic power.

After becoming a high-ranking demon, Roy found that the efficiency of the magic power brought by using ordinary souls to create essence magic potions was greatly reduced, and it was now very difficult to grow the condensed magic power.

Thankfully, Juliel was by her side, and Roy changed the way he made magical potions.

He first synthesized these collected animal spirits with Heradic cubes, obtained "Fallen Souls" and "Noble Souls", and then used these two high-quality souls to make magic potions!

Originally, in the system, these two high-quality souls were used to make skills, and Roy thought at first that these two souls could only be used to make skills, but under Juliel's reminder, Roy realized that his original idea was actually wrong.

Juliel said that high-level demons prefer to devour high-quality souls, and this sentence reminds Roy that in fact, whether it is an ordinary soul, a high-quality soul, or a holy soul or an evil soul, for demons, all souls can be devoured!

In other words, there is no difference in the nature of the soul, but in the system, the utilization of higher quality souls is different.

Normal souls can be used to craft various items in the system and provide Roy with mana growth, while high-quality souls, although they cannot be used to craft items, can make skills, and it is also feasible to supply mana growth, as for holy souls and evil souls, they cannot be used to craft item skills, but they can create life while still providing mana growth.

It's just that Roy has tried to devour angelic souls, and the growth effect is minimal, and it is very unpalatable, because in the Holy Soul, the positive emotional power is condensed to the top, and for the demon, the benefit is the least.

That is to say, according to the theoretical calculation, for demons, the order of the magic growth effect contained in the soul should be as follows: evil souls> fallen souls> noble souls> ordinary souls> holy souls!

For angels, the order may be reversed......

In the case of evil spirits, you can only get them by killing high-level demons and above-rank demons, which is a difficult way for Roy to get started, because the higher the high-level demons, the fewer they are, and generally speaking, after reaching the high-level demons, the killing of each other will become very small, so it is difficult to increase the magic power by collecting a large number of evil souls.

Of course, Roy can actually find a way to modify the Hradic block so that it can be synthesized into evil souls, but it is estimated that this synthesis also requires a large number of ordinary souls.

Now, for Roy, the most efficient way to increase his mana power is to use fallen souls to create magical potions!

So, after accumulating souls for a while, Roy made changes to the defining properties of magical potions, allowing them to make magical potions from fallen souls crafted from Heradic blocks.

Originally, the Hradic block used one hundred and ninety-eight standard ordinary souls to create one fallen soul and one noble soul, which was ninety-nine standard souls combined with a high-grade soul, but the animal spirits of mutated creatures were not as good as the standard souls of humans, so after trying it in the end, it was about one hundred and forty mutated animal spirits, which could be synthesized into a high-grade soul.

The noble souls that were synthesized were kept by Roy for later use to make skills, or they could also be used to make magic potions in the future, and all the fallen souls were all used by him to synthesize magic potions.

The result of the test is gratifying, if a fallen soul is directly devoured, it can increase Roy's magic value by about 0.6, but the magic energy potion made through the essence can increase this value to about 0.8, and when converted into the magic energy potion made by the previous ninety-nine standard human ordinary souls, it can only increase by about 0.5, and the efficiency gap is 0.3!

Roy's current mana value is 5,000 points, and if he wants to double his mana value to 10,000 points, it means that he will need more than 6,000 fallen souls, which is about 600,000 ordinary souls.

This is still with the effect of the essence magic energy potion, if it is just devouring and digesting like other demons, it will cost at least a million ordinary souls......

Roy finally knew the reason why it would take a long time for the upper demon to be promoted to the demon lord, because it was absolutely impossible to collect so many souls without the assistance of time......

As a result, Roy was looking forward to the million souls promised by Fury, and he didn't think much of it before, but now he suddenly realized that what a huge number of souls Fury could take out, and it would not be an exaggeration to say that she was a golden thigh.