Chapter 91: Evil Breaking Knife
In the dark spiritual space, a huge black book is floating in it. Although it is also black, it always gives people a feeling of emitting black light and is full of presence.

In the altar below the black book, more than a hundred thick and thin black gases are constantly winding and flowing. This is exactly what Uchiha Feiyu has gained during this period of time.

Some of them were ninjas he killed during missions in the Root, and some of them were ninjas he killed in the Cloud Ninja Battlefield.

Although the amount of black energy was far less than what he gained on the Sand Ninja battlefield, its quality was far better.

The strength of the Root mission targets is almost no less than that of the Special Jonin, and the vanguard troops of the Cloud Ninja have no ninjas whose strength is lower than that of the Chunin. Compared with the ninjas on the Sand Ninja battlefield, their quality is undoubtedly much higher.

Uchiha Feiyu has always suspected that the inheritance he obtained from the Book of Demonic Inheritance is not only related to the number of sacrifices, but also has a lot to do with the quality.

It just so happened that he was being targeted by several powerful men from Yunyin and felt quite insecure, so he planned to use these sacrifices to exchange for some useful inheritances to give himself another trump card.

As Uchiha Feiyu's mind changed, the black gas under the black book suddenly fluctuated violently on the altar, and after a moment it merged into the black book. The black book trembled twice, and a new piece of information appeared in Uchiha Feiyu's mind.

"The Sha-Breaking Knife... This time, what I was given was actually a method for refining a magical weapon?"

When Uchiha Feiyu performed the sacrifice this time, the requirement he put forward was to be able to resolve the defense of the Lightning Release Chakra mode, and also required it to be completed quickly.

However, he did not expect that the book of magic inheritance actually gave him a method of refining magic weapons.

It's like facing a master of Iai swordsmanship, and the method your teacher teaches is not some more advanced swordsmanship, but to buy a Lolock and use American Iai to kill the opponent.

"I originally thought that I would be given a new inheritance... That's right, I was able to complete the inheritance of the Lightning Escape Armor in a short period of time. I'm afraid that the sacrifices I made would not be enough."

Thinking of this, Uchiha Feiyu immersed his mind in the method of refining the magic weapon, the Sha-Breaking Sword.

After studying it for a while, Uchiha Feiyu discovered that the so-called Evil-Breaking Sword was actually a copycat version of the famous Tianluo Blood-Transforming Divine Sword of the Demonic Path.

Of course, calling it a copycat version may be a bit of an exaggeration to say that the Posha Knife is a copycat. The effect of this thing is far inferior to that of the Tianluo Huaxue Divine Knife. It has neither the magical effects of the Tianluo Knife nor the mighty power of Huaxue.

The only thing it can be used for is the evil-breaking energy on the knife. The effect of this evil-breaking energy is that it has a strong destructive power on energy and soul.

In other words, a successfully refined Evil-Breaking Sword can ignore the body's protective Qi, and once injured by the Sword, both the body and soul will be damaged, making it difficult to recover.

The effect of the Sha-Badao is not very strong. Among various magical weapons, its effect is at the bottom. It is not even much stronger than those famous ninja swords in the ninja world.

However, this sword is extremely targeted and can almost defeat chakra-protecting ninjutsu such as Lightning Release Armor, which is exactly what Uchiha Feiyu requested at the beginning.

In addition, as a standard magical weapon, the method of refining this sword is also very simple, which requires a large amount of souls.

In order to refine the Evil-Breaking Sword, a total of 360 souls and a fine sword are needed. Then the 360 ​​souls must be destroyed, and the evil spirits generated when the souls are destroyed must be used to condense a stream of evil-breaking spirit into the blade. This is the so-called Evil-Breaking Sword.

If you continue to use the Evil-Breaking Knife to kill people, the Evil-Breaking Aura on the knife will increase, which means that the damage to the soul will be greater, and it can have effects such as breaking through stronger protective Qi.

Of course, as an ordinary magic weapon, the effect of this sword also has its limits, but at least it is enough to deal with the lightning chakra mode of two Raikages. According to the records in the inheritance, even the newly-cultivated Sha-breaking Sword is enough to easily break the lightning chakra armor of the Fourth Raikage.

Once the Sha-breaking Sword reaches its full power after being used to chop down hundreds of people, the Lightning Release Chakra Armor of the Third Raikage would probably be as thin as paper in front of it.

"Although it's different from what I imagined, once I master the Sha-Breaking Blade, the Hidden Cloud Village will no longer be a big threat to me!"

"Most importantly, it seems to be quite easy to master this sword!"

Uchiha Feiyu has in his hand the retractable Kusanagi sword given to him by Orochimaru. Although the name of the Sha-Breaking Sword is a sword, as long as it is a high-quality weapon, it can be combined with the Sha-Breaking Aura and the effect is not compromised at all, so the Kusanagi sword can of course be practiced into a Sha-Breaking Sword.

As for the souls, there is no need to mention it. Uchiha Feiyu, who has the power to summon souls and dispatch generals, has souls in four digits in his hands, so 360 souls are just a drop in the bucket.

With the production method and materials, Uchiha Feiyu did not waste any time. In just one night, he had transformed the Kusanagi sword into the Sha-Breaking Knife, or the Sha-Breaking Sword.

The Kusanagi sword, which has been infused with the energy of breaking evil, does not seem to have any other changes. Only after looking at it for a long time, will one feel that there is a faint pale light flowing on the sword, which makes people frightened.

Uchiha Feiyu narrowed his eyes slightly, condensed a ball of pure chakra in his hand, and then gently placed the Kusanagi sword on the chakra ball. A faint white light flowed, and the entire chakra ball was melted like hot soup poured on snow.

Then Uchiha Feiyu performed an incomplete version of the Lightning Release Chakra mode, forming a thin layer of Lightning Release armor on his arm. The Kusanagi sword lightly touched the Lightning Release armor, and the entire armor immediately collapsed.

"Earth Escape—Earth Flow Wall!"

After summoning a layer of earth escape wall, Uchiha Feiyu held the Kusanagi sword and slashed at it. A huge crack appeared in the wall, but it did not collapse.

"Can it only restrain pure energy? It seems that the Kusanagi sword cannot penetrate defensive ninjutsu with physical form, such as earth escape and water escape."

"Next, let's test its ability to harm the soul, the art of spiritual communication!"

After using a summoning technique to summon a giant snake, Uchiha Feiyu swung his sword at the snake's tail, leaving a huge bloody hole.

The summoned giant snake hissed in pain, and the whole snake curled up and struggled frantically. In the end, Uchiha Feiyu used the Sharingan illusion to immobilize it.

"Is it because it is lethal to the soul, so the pain is also increased a lot?"

With a guess in mind, Uchiha Feiyu immediately used medical ninjutsu and began to treat the snake's wounds.

However, the medical ninjutsu that was originally effective was much less effective this time. The flesh and blood regenerated slowly and soon became ulcerated again.

The small wound that should have healed in less than a minute took Uchiha Feiyu more than two hours to fully recover. Even so, the big snake's body was still twitching, and it was visibly much weaker.

(End of this chapter)