After learning that the two super masters of the demon race at that time were killed and injured, and the demon group was leaderless, the human race immediately gathered a large army to attack the demon race and carried out a massacre of the demon race. Pen, fun, and www.biquge.info

Just when the human race was advancing step by step, forcing the demon race into the final desperate situation, the Demon Emperor finally appeared.

At that time, the Demon Emperor held this black and red long sword in his hand and led the remaining demons to launch a counterattack.

This long sword was extremely powerful, and it actually helped the Demon Emperor slaughter thousands of Terran cultivators along the way, causing the Terran to retreat to the Terran realm at that time.

This long sword also became famous in this battle, and the Demon Emperor named this sword "Demon Slayer".

It is rumored that it was named so because the Demon Emperor personally sealed and refined all the energy essences of the Blood Slaughter in his hands into this "Demon Slaughter".

The Demon Slaughter became famous in the Qingyun Star Continent, especially the cultivators of the human race, and regarded it as the first killing weapon of the demon race. After this war, when the first generation of Demon Emperors was in power, the human race no longer dared to invade the demon race.

However, it is also because of the Demon Slayer Original's Soul Blood Slaughter Divine Soul Cultivation is deep and deep, and the murderous and violent aura of this Demon Sword is extremely strong after countless bloodthirsty people, it is very easy to erode the user's mind with anti-guest.

After the first generation of Demon Emperor ascended to the Immortal Realm, he left the Demon Slaughter in the Demon Clan.

This demon clan's first killing weapon has caused hundreds of demon elites to go mad and lose themselves, becoming devils who only know how to kill, including a demon emperor prince.

Later, the Demon Slaughter was listed as a forbidden weapon of the Demon Clan by the third generation of the Demon Emperor, and it was put on the shelf, and no one dared to use it again.

Mo Fei found this magic sword in the armory of Ruyi Cave Mansion, of course, he also learned about the history of Demon Slaughter in detail, but Mo Fei felt that this murderous and violent aura of Demon Slaughter could just help him cultivate the "Recipe for Returning to the Heart" and exercise his own mind, so that he would often practice sword with this sword.

Today, seeing that Yu Daozheng had already used the power of the Yuan Destroying Killing Array, he did not hesitate to take out this sword.

This magic sword has distinctive characteristics, and it is regarded as the first killing weapon of the demon race by human race cultivators, and almost every sect will introduce this magic sword to their disciples, and it is because Yu Daozheng recognized this magic sword at a glance.

Mo Fei had only practiced swordsmanship with this magic sword in the usual days, but this was the first time he had used it in actual combat.

When he practiced the sword before, Demon Slayer didn't have such a strong reaction.

Mo Fei felt that there was a powerful tyrannical force in the Demon Slayer that was eager to try into his body, so he simply concentrated on his heart, trying to guide this tyrannical force to perform his swordsmanship.

But he didn't expect that the demon slaughter awakened by Yu Daozheng's attack power did not obey his orders at all as Mo Fei usually did when he practiced swords, but like a beast that had been trapped for a hundred years and suddenly liberated, he suddenly flew up with Mo Fei and turned into a hideous, red-haired and red-eyed devil, violently attacking Yu Daozheng.

You must know that before being refined into a Demon Slayer Primordial Spirit, Blood Tu was a top master at the Earth Immortal level, and he had already stood at the peak of the Qingyun Star Mortal Realm, reaching the realm of immortality and immortality.

After becoming the original spirit, although it was forcibly erased by the first generation of demon emperors, its consciousness and memory were greatly damaged, but its strength was still able to reach the immortal level.

This is also the reason why no one has completely conquered the Demon Slaughter for thousands of years, but many people have been driven mad by the Demon Slaughter.

Blood Massacre killed countless people in his life, and in order to achieve enlightenment, the cultivators of the three clans of humans, demons, and demons will take the initiative to retreat when they see him. Today, being attacked and provoked by others, even the original spirit who only had a subconscious blood slaughter was still furious, and took the initiative to forcibly unite with the Mo Fei human sword, and viciously slashed towards Yu Daozheng.

Yu Daozheng hurriedly took out his sword to parry, and under the attack, the spiritual power of the entire mountain protection array swayed for a while, and the people of the main array of each peak were affected to varying degrees.

Especially Chiyan Peak, because Liu Songtao was seriously injured and could not preside over the formation, the deputy peak master who presided over the formation instead of him was shocked and vomited out a mouthful of blood because of a certain gap in cultivation.

Mo Fei only then understood the true power of this demon slaughter, and he saw that he could not control the demon slaughter, so he simply kept to his heart, merged with this demon slaughter, and let it play freely to fight with Yu Daozheng.

As soon as the demon slaughter made a move, it was a storm-like blow, waving the devil's claws faster than one move, and one move more ruthlessly, and Yu Daozheng retreated step by step.

The spiritual power in the Great Array of Protecting the Mountains of the Heavenly Gate continued to scatter and drift like a tidal wave, impacting Yu Daozheng and the other people in the auxiliary array. After dozens of moves, many people had already vomited blood and fell to the ground.

And Yu Dao, who bore the brunt of the blow, faced this overwhelming blow, and he only had the ability to parry, not the power to fight back. He really didn't expect that with the help of the spiritual power of the Mountain Protection Array, he would be beaten like this by Mo Fei.

After three more moves, Yu Daozheng finally couldn't bear this kind of fierce and violent continuous blows, and spit out a mouthful of blood with a "poof", and he was injured internally and could no longer preside over this Yuan-destroying killing array.

The spiritual power of the unpresided mountain protection array also began to collapse, and the people who presided over the formation of each peak were all affected to varying degrees, and many people suffered a lot of internal injuries.

Demon Slayer will never be soft, and at the moment when the formation collapsed and Yu Daozheng was injured, he had already swung his claws to grab Yu Daozheng's heart. Without the support of the Mountain Protection Array, Yu Dao, who was locked by the Demon Slaughter, was unavoidable, and he was about to fall under the bloody blade of the Demon Slaughter.

Mo Fei, who had always kept his heart and let the Demon Slaughter play freely, saw that he had won, and he didn't want Yu Daozheng's life, so he suddenly used the "Dragon Yin Soul Dementor" technique with all his might, and shouted at the Demon Slaughter in an unquestionable tone, "Demon Slaughter is back to the sheath!"

Demon Tu was slightly stunned when he heard this, and then two big hands suddenly appeared, slapping towards Demon Tu.

Seeing this, Demon Tu couldn't help but roar, and gave up attacking Yu Daozheng, but stretched out his claws left and right to break the closure of his bare hands.

Boom! The big hand was like two small mountains, with an unstoppable momentum, and turned into a sheathed sword in the brilliance, which fell into Mo Fei's hand.

This scabbard was personally refined by the first generation of Demon Emperor for Demon Tu, and there were thousands of earth immortal-level prohibitions arranged by him in the scabbard, and it was the only magic weapon that could restrain the Demon Slayer and make it completely quiet.

Mo Fei was not lightly affected by the aggressiveness and murderous aura of this demon slaughter, if it weren't for the tempering of the eighteenth layer of purgatory space, and the perseverance of his life technique since he was a child, he really couldn't drive the demon slaughter.

Despite this, Mo Fei also gained a lot from merging with Demon Slaughter, allowing him to experience the momentum and power of an immortal-level powerhouse in advance, which would be of great benefit to his future cultivation.

Although Mo Fei stopped in time and took back the Demon Slaughter, Xiangtianmen was already in a mess, many disciples were injured by the collapsed spiritual airflow, and most of the buildings of the original Qifeng were also destroyed.