Demon Slayer becomes stronger by swinging his sword

Butterfly Shinobu bowed deeply to Feng Yu, her eyes revealing a longing, a desperate desire for power.

Even if Butterfly Shinobu is a few years older than Feng Yu, he shows great respect.

Feng Yu nodded, and Xiao Bai also jumped to the side and looked at the two quietly.

"There are two realms I can teach you, one is the transparent world, and the other is the marking!"

"I have read an ancient book that records that the transparent world is that all those who have reached the peak will reach the same end, even if the times change, everyone has experienced the same day, they will eventually reach the same end.

"The transparent world is a state that pushes the body's ability to perceive and control to the limit.

Then Feng Yu directly opened the transparent world, and for a while, Feng Yu's whole person seemed to disappear into this world, but in the eyes of Butterfly Shinobi.

"This is—"

Butterfly Shinobu looked surprised in his eyes.

"Everyone's way to reach this state is different, but I automatically comprehended this state when my mental power and ability to control my body reached the limit. Wind

Feather closed the transparent world, and then a huge spiritual force pressed towards the Butterfly Ninja.

Under the oppression of spiritual power, Butterfly Shinobi's face turned pale, and she could feel that Feng Yu was like a demon god at this time, and her body became extremely huge, and she was as weak as an ant in front of him, allowing him to slaughter.

"Well... It's amazing..."Butterfly

Shinobu broke out in a cold sweat behind her back, and her body was constantly trembling.

Seeing this, Feng Yu put away his mental power, and Butterfly Shinobi suddenly felt a sense of relaxation in his body.

I couldn't help but sit on the ground, panting constantly, as if I had just consumed a huge amount.

"When I was cultivating my spiritual power, my perception was constantly getting stronger, and my control over my body was also constantly improving, and I finally broke through the limit and reached

this realm!" "In this realm, I can see what is happening to you, and the world will tell me what you will do next, so it's best to prompt me what to do next!"

Feng Yu looked at Butterfly Shinobu and said slowly.

"Mental power and control over your body..."Butterfly

Shinobu carefully comprehended what Feng Yu said.

"The transparent world is like this, but I'm going to talk about a different realm

!" "That's

the markings!" Then

the yellow and blue markings on Feng Yu's face appeared, extending to the center of the eyebrows on his forehead, intertwining with each other.

With the appearance of the markings, the breath of the wind feather suddenly changed, just like a tame little lamb, suddenly turned into a fierce tiger!

The breath was constantly raging, with the wind feather as the center, and the powerful air currents rolled up the dust on the ground.

Xiao Bai was used to seeing it on the side, looking at Feng Yu with a look of adoration, and constantly knowing how to be awesome

in her heart! Butterfly Ren looked at Feng Yu with wide eyes, both of which made her unreachable, but there was hope in her heart.

Originally, she thought that becoming a pillar had reached the peak of her strength, but she never thought that the man in front of her, who was a few years younger than herself, would surprise her again and again.

From the original weakness to the point where he now looks up to him, he is a miracle in himself, and even the fastest young man who has become a pillar, Kasumi Toto Muichiro, is not as good as Feng Yu at this moment.

"The realm of markings requires external stimulation and your own understanding, external stimulation is a breakthrough point, such as huge anger, with breathing, so that your own blood flow is more rapid, when you open the markings, the body's body temperature will also rise extremely quickly to reach a high temperature state, then you will feel that the whole body is burning, and the heartbeat and pulse will also accelerate..."

"At the same time

, the markings are also divided into congenital markings and acquired markings, the congenital markings are a person born with, and the other is through the acquired efforts to achieve the conditions for opening, but the acquired markings are divided into two realms, one is the unstable markings, and the other is as free to control as I am!" "The congenital markings are extremely powerful, except for that one in this world, there is no second one who is born with markings..."

Feng Yu watched quietly as Butterfly Shinobu clenched his hand, bit his lip and stood up with difficulty and looked directly at him.

"Please, Feng Yu-kun!" The

gloomy whiteness on Butterfly Shinobi's face has not faded, and at this moment, she is a weak girl in Feng Yu's eyes, holding her body strongly.

"I think the two realms complement each other, the transparent world gives the limit its own reaction and control ability, and the markings are more powerful and the body's recovery ability!"

"But... There is a downside to these two realms... That is, the opening of the two realms requires the consumption of a lot

of vitality...""Just by opening the markings, I can feel that my vitality is constantly passing, and at this rate of consumption, I can only live to the stage of 25 years old..."

So Miss Butterfly Shinobi... Have you really thought about it..."

Feng Yu looked at her tightly, although he knew that Butterfly Shinobu would definitely answer "yes" without hesitation, but he still wanted to ask her!

Sure enough, Butterfly Shinobu resolutely replied that he was ready.

"Feng Yu-kun, I'm sure you've more or less understood what happened to me, so no matter what, this is the only hope that can make me stronger and allow me to kill that ghost, even if it's death, I'll be willing!" Butterfly

Shinobu forced a smile on his face, and there were crystal tears shining in the corners of his eyes.

The wind was blowing gently, and the feather weaving on the butterfly ninja's body was fluttering,

"Sister... You're rooting for me, right, I'll avenge you, soon, soon..."Butterfly

Shinobu felt the breeze blowing, and gave a gentle touch on her face like the sister she once loved the most.

Feng Yu looked at Butterfly Shinobu and sighed in his heart.

"Now that you've decided, let's start our special training!"