Hearing Xiao Han's words, Yi Shuangyu was very happy, and soon Elder Yan sent a hundred domain energy crystals.

To break through from 39% to 40%, it takes a hundred domain energy spars, which is ten times that of breaking through to 30%, and it is said that if you want to break through to 50%, you need an astonishing 1,000 domain energy spars, which is a big burden even for the major forces.

With a hundred domain energy crystals, Xiao Han didn't like anyone to disturb him, nor did he like to be watched, so even if it was the secret room of the Dragon Emperor City, he didn't want to use it, who knew if there were any high-level officials of the Dragon Emperor City watching in the secret room of the Dragon Emperor City?

So he chose the hotel carriage, opened a room, and then broke through alone in the room.

Regarding his choice, Elder Yan and the others didn't say anything, but they also vaguely knew that Xiao Han should have some secrets, and they didn't want others to know.

In the hotel, Xiao Han took out a hundred domain energy crystals and began to absorb the huge energy in them to make this extremely important breakthrough.

Breaking through to more than 40%, among the major forces, it is already considered a high-level, even if it is Elder Yan, it has only awakened to more than 40%, less than 50% of the level.

And the awakening speed after breaking through to 40% is much slower, under normal circumstances, hunting some train monsters, it is possible to break through one layer on average every year, and if you want to break through from 40% to 50%, in a normal state, it will take ten years.

Of course, if you enter the battlefield of an alien race, sharpen between life and death, and fight with an alien race of a similar level, this speed is of course ten times and a hundred times higher.

This is also an important reason why all the major alien races have to enter the battlefield in advance.

Now among the human race, there are also many people who have awakened to more than 40% and have entered the alien battlefield one after another, but it is not forced like some extreme aliens, so the alien race has awakened to this level, and they must enter. Among human beings, it is more about human rights and the principle of voluntariness, and there is no coercion.

Xiao Han devoured all the energy of the hundred domain energy crystals and fused them into the power domain furnace, and after that, the furnace surged out a torrent of energy like an explosion. This energy stimulated the Barbarian King, causing the Barbarian King to begin to mutate and grow wildly.

This time, the growth of the barbarian king's gray-black substance ran down his body and extended towards his left arm.

After this mutation and awakening stopped, his entire left arm became the same as his right arm, completely obscured by the gray-black barbarian king's wrapping, forming a metal arm, and even five fingers became metal.

Xiao Han closed his eyes, feeling the earth-shaking changes in his body.

The Barbarian King has awakened to 40%. Now his entire upper body, except for his head and face, front chest, back and two arms, have completed the metalization of the barbarian king, as if wearing a layer of metal armor outside his body.

Now, his left arm is finally as powerful as his right, and only one right arm is as powerful as before. And the left arm is almost like a scrap.

In addition to the Barbarian King's awakening extending to his left arm, his "Barbarian King Clone" has also evolved further. Behind his left arm, there was once again an illusory energy arm.

This energy arm is similar to a copy of his left arm, and is in contrast to the previous energy arm, which happens to be the right arm of energy and the left arm of energy.

It's just that these two energy arms are floating behind him, especially the energy left arm that has just appeared. It's a complete phantom state.

There are one or two hundred silk threads formed of silver energy in the right arm of energy, and the power of this right arm of energy is now far greater than that of the left arm of energy that has just been born in a completely illusory state.

Xiao Han sensed both arms, and the fingers of the energy arm were moving gently, appearing very flexible. This feeling of being like an arm making a finger made Xiao Han feel like he had four arms, and he could control each arm freely.

"According to the current way of awakening, could it be said that in the future, the clone of the barbarian king will really completely form a complete individual? What if my doppelganger exists? Xiao Han was groaning, the power in his body was boiling, but there was a message in his mind.

Awakened to 40%, in addition to the evolution and improvement of these original abilities, Xiao Han also gained new abilities.

A brand new ability, named "Barbarian King Smashing Fist".

This ability can be seen as the improvement and evolution of the "Trap Punch".

The "Barbarian King Smashing Fist" can accumulate hundreds of attacks that the "Trap Heavy Punch" hits out in an instant, and all the energy is concentrated and blasted out at one time, causing a terrifying power, which can burst out several times or even ten times the user's own strongest force.

This power is enough to smash everything, and this ability is called the "Barbarian King Smashing Fist".

Xiao Han felt the mystery of the "Barbarian King Smashing Fist", the principle was very simple, but it was not easy to condense the hundreds of attacks that the "Organ Heavy Punch" had hit in an instant, and the energy power would be superimposed, and its reasonable and successful control and cooperation would burst out at one time.

Xiao Han simulated twice in a row in his mind, but both failed.

It seems that even if you master the mystery of this smashing fist, you still need a lot of practice to really master it.

After that, Xiao Han opened the space Rubik's Cube, took out some silver fragments from the crowd, and began to use the Barbarian King to fuse.

The silver shards attached to the Barbarian King, and the shards combined to form scale armor, which soon extended and wrapped around Xiao Han's left arm, causing his left arm to turn silver as well.

After fusing the silver fragments to reach the limit, Xiao Han put away the remaining fragments, both arms were silverized, and the silver power in his body was boiling, now he has obtained the power of silver, and he has become stronger, his strength has increased, why not just double?

Not only that, but the moment the Force Domain Furnace broke through and awakened to 40%, it spewed out terrifying energy, and it even melted a large number of silver god's body in one fell swoop, making the silver energy threads in the right arm of his barbarian king's clone become more than two hundred.

These two hundred silk threads are intertwined with each other, densely attached to the surface of the phantom arm, and the silver power exuded inside is already thick.

After successfully breaking through, Xiao Han took a shower, changed into a set of clean clothes, and fell asleep.

In the alien battlefield, you can't sleep well on any day, and only at this time can you sleep comfortably.

It wasn't until the communication cube came with a message that Xiao Han was awakened.

It was Elder Yan who contacted him, asking him about his breakthrough, and if the breakthrough was successful, let him return to the "Dragon Emperor City", and the city lord Yi Shuangyu also rushed back to summon him.

Xiao Han answered, changed into a new suit of armor, and then left the hotel carriage and used the positioning cube to return to the headquarters of the "Dragon Emperor City".

In the hall of the headquarters, he met Yi Shuangyu and Elder Yan.

(End of this volume) (To be continued......)