A powerful wave of spiritual energy erupted from Old Man Kumu's body, and the surging spiritual energy wave instantly filled the entire cave.
At this moment, behind Old Man Kumu, a scale usually used for weighing suddenly floated there, emitting a faint blue light.
"Earth-level martial spirit!"
Old Man Kumu summoned an earth-level martial spirit, which did not surprise Ye Yun at all. He rushed in front of Old Man Kumu and slashed directly at Old Man Kumu's neck.
However, facing Ye Yun's blow, Old Man Kumu looked calm and just stretched out a hand to block the sword's edge.
However, with just such a hand, facing Ye Yun's sword blessed with the Demonic Sword, he stopped the sword's attack without giving an inch.
Ye Yun's sword did not cut off Old Man Kumu's hand at all, but only left a white mark on Old Man Kumu's palm!
Turning around, Ye Yun looked at Old Man Kumu, with a flash of surprise in his eyes.
He obviously did not expect that Old Man Kumu's physical defense was so strong, and that he could face the attack with his own demon sword with bare hands.
You know, Ye Yun's blow is enough to break gold and stone!
Even Ye Yun, who had cultivated the immortal demon body, would never be able to receive his own blow without any injuries.
"not bad!"
"It actually left marks on my hands!"
Looking down at the white mark on his hand, Old Man Kumu couldn't help but feel a little surprised.
"Is this the ability of your martial spirit?"
Looking at Old Man Kumu, Ye Yun couldn't help but ask.
Ye Yun knew in his heart that even if Old Man Kumu had the strength of a martial artist, and even if he specialized in physical training, he would not be able to resist his sword with his body.
And in the extreme pupil state, the moment Ye Yun found that his sword fell into the hands of Old Man Kumu, Old Man Kumu's feet suddenly sank into the ground.
It was as if the ground suddenly couldn't bear the weight of the dead old man.
"It looks like you found out, but it's too late to ask for mercy now!"
As he spoke, Old Man Kumu rushed out and rushed towards Ye Yun at an extremely fast speed.
In just a blink of an eye, he rushed in front of Ye Yun and punched Ye Yun.
"So fast!"
Facing the punch punched by Old Man Kumu, Ye Yun had no time to react, and was directly knocked away by Old Man Kumu's punch.
The whole person flew backwards at an extremely fast speed, and did not stop until he hit the wall of the cave.
"boom!"
Violent tremors occurred throughout the cave, and countless loose boulders fell one after another.
And at the wall where Ye Yun hit, a wall completely made of hard rock, a deep pit had appeared at this moment.
Ye Yun's whole body was directly embedded into the wall.
Outside the wall, Old Man Kumu walked slowly and looked at Ye Yun with a proud look on his face: "My martial spirit can freely convert the mass of my body between one ten thousandth and ten thousand times."
"When I am moving, I can reduce the mass of my body to one ten thousandth of my own, making my body move as light as a feather."
"And when I am attacking and defending, I can increase the mass of my body to ten thousand times my own, making my body as heavy as a mountain."
Old Man Kumu told the story of his martial soul's ability without any care. In his eyes, Ye Yun at this moment could not be his opponent at all.
In the past, Old Man Kumu's enemies would despair and even lose their fighting spirit after discovering his abilities.
And he had this idea in mind when he explained Wuhun's abilities to Ye Yun.
But to his disappointment, what answered him was a sword energy flying towards him.
Immediately afterwards, Ye Yun's figure flew out from the wall.
"useless!"
Facing Ye Yun's attack, Old Man Kumu's face was full of disdain. He just moved his body slightly and moved away like a ghost.
At this moment, he converted his body mass to one ten thousandth, and Ye Yun's attack couldn't even get close to Old Man Kumu.
Without even waiting for Ye Yun to change his moves, the figure of the dead old man flickered and appeared next to Ye Yun like a ghost.
At the same time, a punch hit Ye Yun's abdomen mercilessly.
At the moment when the punch hit, he converted his body mass to ten thousand times his own, greatly increasing the power of his punch.
Ye Yun's body arched up in an instant, and was driven into the rock wall by the powerful force carried by this punch.
The powerful force pushed Ye Yunzhi, directly punching through the rock wall of the cave.
When Ye Yun appeared again, he had arrived at the previous canyon. In front of him at this moment was a deep ravine, extending directly from the cave to him.
"What a terrifying power!"
Ye Yun stabilized his figure and couldn't help but sigh in his heart at this moment, but he didn't have any fear at this moment. Instead, he felt a strong fighting spirit in his heart.
Old Man Kumu's martial spirit is very strong, but no matter how powerful his ability is, it will always have its weaknesses.
Although body defense and strength are strengthened when converting its own mass to its maximum value, speed is weakened.
On the contrary, if one's own mass is converted to the minimum value, one's own speed will be greatly increased, but the strength and body defense will be weakened.
Although Ye Yun's current state is not as good as that of Old Man Kumu in all aspects of defense, with the extreme pupil state activated, Ye Yun can barely capture Old Man Kumu's figure.
Just now, Ye Yun clearly sensed that Old Man Kumu's speed suddenly decreased before his attack hit him.
That should be that he is undergoing quality conversion, converting his own quality from the lowest quality to the highest quality.
When a high-speed moving object switches from low mass to high mass, a large amount of kinetic energy will also be consumed, resulting in a reduction in movement speed.
And this is the weakness of this ability!
"Demon Crystal, open!"
boom!
A violent roar of air waves sounded, and Old Man Kumu directly smashed through the rock wall of the cave and flew out.
However, just as he was about to continue attacking Ye Yun, a warning sign flashed in his heart.
He suddenly stopped in front of Ye Yun and looked at Ye Yun warily.
At this moment, Ye Yun's skin glowed with a faint red light, and a faint blue smoke floated around Ye Yun's body.
And Ye Yun's aura and cultivation level are also constantly rising upwards.
Fourth level of true martial arts...
The sixth level of true martial arts...
The eighth level of Zhenwu...
Just in the blink of an eye, Ye Yun's cultivation level broke through the realm of martial arts master and stayed at the second level of martial arts master.
"Being able to transform one's own mass at will is indeed a very powerful martial soul ability. However, these are not enough. If you have no other means, then prepare to die."
Ye Yun's blood-red eyes looked at Old Man Kumu, and his cold and disdainful voice sounded in Old Man Kumu's ears.
