"Soul duet? Hehe, hey, just you and this lowly human, don't scare me with it, do you think I'm going to believe it?"

The ghost spirit didn't believe that Hei Yuan could use the soul duet with Zhang Yiyang, a forbidden technique to split the soul.

Because the soul duet is a forbidden technique that can only be used to split the power of the soul when the soul and the master have reached a certain tacit understanding, and it is also a skill that can help the soul absorb the power.

The premise of using this forbidden technique is that the soul is willing to sacrifice its soul to its master, swear by its own soul, and serve only one lord for the rest of its life. Just like the Mora Blood Drop, its existence can practice this forbidden technique with its master.

Therefore, the ghost spirit does not believe that Hei Yuan will be sacrificed to such a lowly human being, you must know that they are not ordinary instrument souls, but the nine demon soldiers that have existed for thousands of years, if they want to choose sacrifice, they have already been sacrificed to the powerful master.

"Soul Duet?"

Zhang Yiyang didn't know what Hei Yuan said about the forbidden technique, but he could also judge between the lines that this was a powerful means of decomposing soul power, but if it was really necessary for him to use it with Hei Yuan, then he dared to guarantee that Hei Yuan was fooling the ghost spirit at this time, because he didn't know any soul duet at all.

"Believe it or not, it doesn't matter anymore! From today on, there will be no place for your ghost spirit among the nine demon soldiers! Yi boy! Are you ready?"

"Uh... Kuroko: What are you going to prepare?"

Zhang Yiyang was still in a state of confusion, as for Hei Yuan's preparation, he didn't know it, he just said in his heart, "Acting, you continue to act, I see how long you can act?"

"Relax, wait to accept my sacrifice!" said Kurobuchi as if in an inconsequential matter.

Immediately afterwards, Zhang Yiyang instantly realized the sacrifice that Hei Yuan said, because the inextricable soul power that entwined the ghosts, in the moment just now, ignored the existence of the ghosts, directly penetrated in, and soon, poured into Zhang Yiyang's soul.

"You... It's insane!"

The ghost screamed hysterically as it realized the gravity of the matter.

But in response, it was Hei Yuan's taunt, "You may have forgotten that there was a legend among the Nine Great Demon Soldiers!"

Hearing this, the ghost obviously fell into deep thought, but then said firmly: "That's just a legend, you're only killing yourself by doing this! I won't let you succeed!"

Hei Yuan replied with a tone of victory, "Yes, but, it's too late, I'll let you taste the effect of this soul duo!"

As he spoke, the last trace of Hei Yuan's soul power was also poured into Zhang Yiyang's soul, and he saw that the strong soul gradually surpassed the ghost spirit and separated from the ghost spirit's soul body.

When the two equally equal soul bodies appeared, the ghost knew that it had lost the qualification to devour each other, and at that time, Zhang Yiyang's voice and Hei Yuan's voice were mixed up.

"Ghosts... The duet is on, go and enjoy it!"

The voice fell, and at the same time, the soul bodies of Hei Yuan and Zhang Yiyang turned into a long knife, and if you look closely, this is the original form of Hei Yuan, like the blade of obsidian, the handle embedded with the image of the demon god, and every line looks so round and smooth.

At this moment, the red gem on the hilt of the knife suddenly lit up, emitting a brilliant light that captured people's souls. Immediately after, a special melody emanated from these brilliant rays, and the sound was dreamlike, especially for the soul body, which had a remarkable effect.

As we all know, the more beautiful the appearance is wrapped in the deadly toxin, and the more beautiful the melody, the easier the effect of natural soul retrieval seems to be.

The ghost was ingested by the soul, and for a while the main soul could not be autonomous, taking this opportunity, it turned into a sword soul in the form of a black abyss, and galloped at a high speed, instantly piercing the soul body of the ghost, of course, this is just the beginning, the black abyss did a sprint again and again, until the ghost soul was cut into countless pieces before stopping.

Looking at the fragments floating in the sea of knowledge, Zhang Yiyang's soul and the black abyss were split in two.

"Uncle, did I say that I wanted to accept you as a little brother?" Zhang Yiyang turned into a thumb-sized self and looked at Hei Yuan with a serious face.

When Hei Yuan heard this, the old face in the state of his soul twitched, "Don't be cheap, kid, sell well! Uncle has made a lot of determination! You talk like this makes me feel very unhappy!"

"What if you're unhappy? You bite me? You have to know that now I'm the master! Whatever I say is what I say? From today on, you'll be called Kuroko!"

"Your uncle! I said the name Kuroko before is too ugly!

"No, it's called Kuroko! By the way, this soul duet seems to be quite bullish, if we can find the rest of the nine demon soldiers next time, can we continue?"

Thinking of the breathtaking melody before, Zhang Yiyang's heart was surging, if this skill can be used externally and capture people's souls, any skill will be a chicken help.

Hei Yuan seemed to look at the master like an idiot, and the thought of regret rose in his heart, and he knew that he should think about it before recognizing the master, and then said mockingly: "Do you think that everyone else is an idiot like a ghost? This soul duet can only be released in your sea of consciousness, and it must be based on the soul of the instrument, except for the ghost, who will run to your sea of consciousness without anything? And once you have the contract soul, you can't accept other soul in this life, so you won't be able to take possession of your body, accept your fate, boy!"

"Damn! I don't do it, I still have to look for a magic weapon? I don't want to take you as a sunspot!"

If the black abyss at this time is not black, then it is now full of black lines.

Ignoring Zhang Yiyang, Hei Yuan chose to be silent, at this time, since the sacrifice was successful, then Zhihai became a new home for it, looking at the soul fragments floating in the air, Hei Yuan laughed wildly.

Ignoring this madman, Zhang Yiyang withdrew from Zhihai, although he said so, but he didn't think so much about Hei Yuan's sacrifice, whether it was to help Hei Yuan or for himself, everything could only be fate!

When he got the power to dominate his body, Zhang Yiyang's first action was to open his eyes, but the scene in front of him made him completely stunned!

Ying Ning shrunk in the corner of the bed, bowing his head and crying, most of the clothes on his body were torn, it is not an exaggeration to describe it as unclothed, obviously he knows what is happening.