So many souls, in fact, for Roy, were completely unexpected.

Sellen, this guy, is really reckless enough, in the face of Roy's strong forces, when facing the elves three or four times the strength of his own, it is estimated that the first thing that comes to mind is to retreat quickly, but Selren, this guy, still has to try to use magic to turn the tide of the battle, and his wave of meteor showers is almost aimed at the most dense places on the battlefield and smashed down, thanks to his magic blessing, Roy is equivalent to directly picking up a big bargain.

The soul of the demon is generally impossible to stay in the other world, after being killed, the Ouroboros mark will pull the soul of the demon into the abyss, so the souls left on the battlefield are all on the elven side, Roy looked at this dense soul, and conservatively estimated that there were thousands of them, which was equivalent to one-third of the elven side's troops were lost under Serren's big move.

This kind of unexpected joy, of course Roy will not be polite, the soul that comes out of the body, the general freshness period is about one or two hours, depending on the size of the soul, the time of dissipation is also different, at this time it has been a lot of time since the previous battle, in Roy's demonic vision, some soul light clusters have begun to disperse, so he quickly sped up, wandered on the battlefield, and gathered these floating souls into the system.

In the end, it took a while to clean up the souls on the battlefield, and when I opened the system interface, the number of souls held suddenly rose to as many as one thousand and seventy-nine!

it! It's sent!

Not long ago, he had just used up all the more than 600 souls, but he didn't expect to replenish them in a blink of an eye, and even exceeded the original number of souls.

"Well, I can't get excited, I have to calculate whether these souls belong to me first!" Roy quickly calmed down and began to think: "Now that Serren is not dead, and I am not dead, this means that the demon contract is still in effect, and according to the provisions of the demon contract, after the battle is won, ninety percent of the loot must be handed over to Serren, but according to the literal meaning, this should mean that the battle is won...... Now the problem is that Serren has lost this battle! It is estimated that Serren didn't expect such a big defeat at that time, right? ”

Generally speaking, if the demon loses the battle, he will definitely run away, and it is impossible to have a chance to harvest the spoils, so when Serren wrote the demon contract at that time, he did not take into account the situation after defeating the battle, and did not make a corresponding explanation, but Roy realized that a situation that exceeded the provisions of the demon contract appeared, that is, because he played dead and got out, although he lost this battle, Roy still got a lot of soul loot!

So, even Roy himself was a little confused, how should this situation be calculated?

After thinking about it for a while, Roy finally came to the conclusion that now more than a thousand souls can really be regarded as his own! There is no need to execute the contract!

Because...... Selren is still being chased by the elves, maybe in the demon contract, this can be regarded as the battle is not over, then, this is the same nature as Roy secretly snatching souls in the battle before, before the battle is over, the souls collected from the battlefield are all his own!

Thinking of this, Roy finally breathed a sigh of relief, holding so many souls in his hands, what Roy was most afraid of was being within the scope of the execution of the demon contract, in that case, it would be bad, which meant that Roy would hand over more than 900 souls.

Roy also doesn't know if the souls that are included in the system, in the case of the demon contract being executed, will these souls be forcibly taken out of the system, because he has not encountered such a situation before, so he doesn't understand whether the system has the ability to isolate the influence of the demon contract, if the system can isolate the influence of the demon contract, then Roy can really be regarded as picking up the treasure, and he can use this isolation function of the system to cheat on the demon contract in the future!

But he couldn't use this opportunity to experiment, after all, once the experiment failed, the system could not isolate the influence of the demon contract, then the price he had to pay was too great, so he could only find a way to experiment in the future, and use a small number of souls to conduct the experiment.

Now that he knew that these souls could be used at his disposal, Roy could also move on to his next step.

In fact, whether it was gaining Serren's trust from the beginning, or the subsequent separation between Serren and Ryska, giving a war letter to the elves for Serren, and even pretending to be dead to escape on the battlefield by creating the Dark Fruit to resist damage, Roy's ultimate goal of these plans was to trap Serren so that he could tear up the demonic contract.

Now, with the help of the chaos on the battlefield, Roy has successfully escaped from Serren's control, and he can not worry about him forcibly giving himself orders, but as long as Serren is alive and not killed and expelled, the contract will always exist and be valid.

If he wants to invalidate the contract, unless either party is killed and expelled, of course Roy doesn't want to die by himself, the longer he does it as a demon, the more he understands the importance of the soul, he doesn't want his soul to be hurt after being killed, so since he doesn't want to die, he can only let Serren die.

Now it just so happens that the war letter has angered the elves, Selren is being hunted down and fled, Roy's intended goal has been achieved for the most part, and then as long as he borrows the hands of the elves and those dragons, kill Selren, then Roy will be free!

It's just that there is a question now, that is, whether Selren will escape under the pursuit of elves and dragons, don't forget, on the other route, there is also the high-ranking demon of Ignatis, and there should be a large number of high-level demon troops in Ignatis, if Selren is smarter and escapes to join Ignadis, then maybe the elves and dragons will not be able to take him.

Therefore, Roy felt that he couldn't completely pin his hopes on the elves and dragons, and it was better for him to intervene when it was appropriate.

So, Roy first opened the system interface and modified the previous settings of his wings.

[Devil's Wings]: High speed flying, maximum speed of Mach 1!

Yes, he changed the definition of his demon wings, from the previous simple just being able to fly, to the maximum speed of sound, and in order to better achieve this, he made his wings a little larger again, and the curve of the wings was also modified to be a little smoother.

Since it was a modification on the basis of the original, it didn't take much time, and this modification, after Roy chose to preserve the manifestation, paid the price of his forty-six souls!

In fact, this speed can be increased even more, but Roy guessed that the faster the flight speed, the higher the soul cost is estimated, and the speed of Mach 1 is estimated to be enough for the time being, and the cost performance will be very good.

After the modification, Roy's wings quickly changed, the wingspan length did not change, but the width was increased a little, when Roy flapped his wings and flew up, he felt that the force used to flapp was more labor-saving than before, after rushing into the air, Roy observed the direction, he still remembered the direction of Serren's escape before, so he sped up and hurried.

He didn't fly at the speed of sound for the time being, because he was not in a hurry to catch up, and if Serren wanted to completely escape from the pursuit of the elves, he was afraid that it would take a lot of time, and Roy was completely in time.

While flying in mid-air, Roy drew in the system interface.

He drew a tetrahedron in a new blank page, then randomly drew some patterns on the tetrahedron, and then began to color it, designing it into a quaint box with a top that could be opened.

Then, Roy began to define the box.

【Heradic Cube】

[Item Function]: Use low-quality souls to synthesize high-quality souls!

Yes, this is a design that Roy only thought of recently, for Roy, low-quality souls are easy to obtain, but low-quality souls can only be used to make static items and transform the body in the system, and cannot be used for dynamic skill creation, and high-quality corrupted souls and noble souls used for skill creation are not so easy to obtain, so Roy has been thinking about whether there is any way to make low-quality souls and high-quality souls transform each other.

According to Roy's understanding of the soul, he thinks that this transformation should be possible, the fallen soul, to put it bluntly, should be the soul that contains a lot of negative emotions and energy, and a person, after deviating from his conscience and deviating from his own race and doing bad things, often causes the soul to produce a lot of negative emotions and energy, and when these negative emotions and energy reach a certain level, the soul will be blackened!

In the same way, a noble soul should have great love for others, and a willingness to give and sacrifice to oneself, which are all positive emotions and energies.

In fact, there are similar emotions and energies in the lower souls, and when any creature dies, it will have the fear of being injured, the fear of losing its life, the hatred of the enemy, the reluctance to give up family and friends, the longing for the lover, etc., but these positive emotions and negative emotions are intertwined, and it is impossible to say which side is more, it can only be regarded as being in a balance, so the soul becomes a soul of lower quality.

There is no greatness or evil, this kind of soul is just ordinary......

Since the lower souls contain both emotions and energies, why not extract them and synthesize them into high-quality souls?

What Roy wants to make now is such a medium, it doesn't matter what the name is, such a box, of course, can't be the real Heradic Cube, it can only be regarded as a fake, he originally wanted to call it Pandora's Box or something like that, but then I thought about it, this kind of synthesis function, it seems that it is more appropriate to call it Heradic Cube, so it was decided.

This is also Roy's holding a large number of souls, so he dares to make this item, after all, he has more confidence, in order to reduce consumption as much as possible, Roy even has a relatively simple functional definition.

However, Roy finally spent four hundred souls to exchange it for it to appear, and it seems that it is not easy to improve the quality of souls.

The quaint box appeared in his hand, and Roy began to try to put his soul into synthesizing.

One, two, three...... As a result, it was not until the one hundred and ninety-eighth soul was put into the box that a burst of light came out, indicating that the synthesis was successful.

Roy opened the lid and found two souls floating out of the box! One is a fallen soul that exudes a rich black mist, while the other is a colorless noble soul with a brilliant light!

The reason why two appear at a time is because in the box, the positive emotions and energy of the soul are reorganized, and the negative emotions and energy are also reorganized......