A sound of True Yuan exploded, constantly resounding from mid-air, and with the counterattack of Li Mu's four people, they fought together with hundreds of Demon Saints.

Although Li Mu and the four of them were not ordinary saint-level powerhouses, there were too many people on the demon clan's side, and it was only a dozen breaths before and after, Wu Liang suffered a heavy blow, his defense was broken by seven or eight demon saints together, and his mouth was spitting blood, and his clothes were stained red.

Niu Dali is okay, he has already become holy in the flesh, and after more than two hundred years of cultivation in the Water Emperor Ding, he has taken a lot of pills in the Water Emperor Palace, and he has already been a cultivator in the late stage of the Holy Order, even in the face of the group attacks of many demon saints, he still resisted.

As for Qi Tian, although his cultivation was not as strong as Niu Dali, under the combination of heaven and demon, his cultivation had also climbed to the late stage of the Holy Rank, and coupled with the wonder of the Returning Ruins Bead, he was not defeated in a short period of time.

If the most relaxed is Li Mu, he has the Eastern Emperor Bell Protector, the attack of the general Demon Saint, he can't help him at all, plus the Heavenly Desolate War Halberd in his hand, and a True Yuan cultivation comparable to the quasi-emperor, not only was he not injured, but he also killed many opponents.

"This guy's combat power is really not weak, if we continue to fight like this, even if there are many of us, we will be killed by him sooner or later, it seems that we will not be able to make a move!"

Looking at Li Mu, whose combat power was terrifying, Bai Crack, who was standing in the air not far away and did not make a move, couldn't help but speak.

Bai Crack and Bai Yi, as well as several other demons who were equivalent to Bai Split's cultivation, did not join the battle group against Li Mu, they just watched coldly from the sidelines.

"This son's combat power is indeed terrifying, especially the mouth above his head, the defense is really strong to the point of perversion, in my opinion, we have to shoot together to break its defense, otherwise if it continues like this, I don't know how long it will last!"

A red-robed old man standing beside Bai Crack frowned and said, he looked older than Bai Crack, and the True Yuan aura emanating from his body was no weaker than Bai Crack.

"Then what are you waiting for, while he has no time to take care of him, let's take action!"

A dazzling white aura lit up behind Bai Crack as he spoke, and then one hundred and eight white wings quickly condensed, and along with these wings, there was also a quasi-emperor-level demonic power.

The murderous intent appeared in his eyes, and the wings behind Bai Crack moved together, and then he pinched his hands and shot a dazzling white aura at Li Mu of the battle group not far away.

As Bai Crack attacked, the red-robed old man also shot out one after another, each of them striking an astonishing aura, which fused with the white aura from Bai Crack in midair, and finally turned into a three-foot-long gray light sword.

As soon as the gray lightsaber condensed and formed, it turned into an afterimage in mid-air and flew towards Li Mu.

As he was fighting to the death with the many demon saints surrounding him, Li Mu suddenly felt a sense of deadly crisis, and before he could react, the gray lightsaber approached him and landed on the blue aura shield transformed by the Water Emperor Ding outside his body.

"Bang!!"

A sound like the cracking of solid ice sounded, and the aqua blue aura mask outside Li Mu's body was pierced by a gray lightsaber sword, and then completely shattered.

After breaking through the defense of the Water Emperor Ding, the gray lightsaber continued to attack, shooting directly on Li Mu's chest, and the tip of the sword also penetrated the past.

"Ahh

Being pierced through his chest by a sword, Li Mu immediately let out a miserable scream, although his physical vitality was far stronger than that of the same level, but the power of this gray lightsaber was even more terrifying, penetrating his physical body, and frantically destroying the vitality in his body.

"Master!!"

Seeing that Li Mu had suffered heavy losses, Niu, who was desperately resisting a large number of Demon Saint attacks, quickly moved sideways in front of Li Mu and helped Li Mu block several attacks.

Li Mu was injured, Wu Liang and Qi Tian naturally saw it, and the two of them also flew to Li Mu's approach.

"Break it for me!!"

With a sweep of his spiritual sense, Qi Tian found that the gray lightsaber was frantically destroying the vitality in Li Mu's body, and he immediately urged the Returning Ruins Bead to emit a yellow shattering aura that landed on the gray lightsaber.

Originally, he wanted to break the Dao Qi and break the gray lightsaber inserted in Li Mu's chest, but what Qi Tian didn't expect was that the almost invincible Breaking Dao Qi that he used to fight the enemy on weekdays actually failed to break the gray lightsaber, but was also scattered by the gray lightsaber.

"Senior brother, be careful!!"

Just as Qi Tian was about to strike again, suddenly, Niu Dali, who was helping Li Mu resist attacks from all directions, couldn't help but exclaim, Qi Tian heard the sound and hurriedly looked back, only to see a jade ruler that was three feet long and black as ink had flown in front of him.

"Smack!!"

Before Qi Tian had time to react, the black jade ruler slammed into his right shoulder, hitting Qi Tian with a shock, and the entire right shoulder was suddenly shattered with flesh and blood, and all the bones were shattered, if it wasn't for Qi Tian turning his head, this black jade ruler would have hit his head.

"Demon Heaven Ruler!!"

Looking at the black jade ruler that had hit him hard, Qi Tian immediately recognized it, this was the Demon Heaven Ruler he had seen many times, one of the imperial weapons of the White Feather Emperor Clan.

"Oh my God!!"

Although he himself also suffered a heavy blow, but seeing his disciple almost die in order to save himself, Li Mu's eyes were red, but he couldn't do anything, because the difference between the strength of his side and the enemy was too great, and it was a blessing to be able to hold on until now.

"Hahaha, Li Mu, you really have the ability, you were hit by the combined efforts of many strong people in our clan, you still have a breath, it seems that God wants you to die at my hands!"

Looking at Li Mu, whose eyes were blood-red, Bai Yi let out a cruel laugh, he raised his hand and pointed at the Demon Heaven Ruler, and a violent imperial power suddenly erupted in the Demon Heaven Ruler, and then a foot with the power of destroying the world slashed head-on towards Li Mu.

"Master!!"

Feeling the terrifying emperor power that erupted from the Demon Heaven Ruler, Niu Dali, who was resisting the attacks of many Demon Saints in all directions with all his strength and had no time to care, let out a heart-rending roar.

At present, Qi Tian and Wu Liangjun have been hit hard and it is difficult to protect themselves, and Li Mu's state is also extremely poor, Qi Tian knows that Li Mu and the others will definitely not be able to withstand the blow of the Demon Heaven Ruler, but he alone resists the attacks of many Demon Saints and has no time to take care of him, Niu Dali's mood is extremely heavy.

"Tian'er, Dali, Brother Wu Liang, if there is an afterlife, we will get together, fight together, and die together!"

Obviously, he also knew that he was going to die, Li Mu was not sad but happy, and looked at Wu Liangniu Dali and Qi Tian with a smile, with a look of reluctance in his eyes.

"No !!"

As soon as he heard what Li Mu said, Niu Dali went crazy and roared again, if there was no Li Mu, there would be no him today, for him, Li Mu is not only a teacher, but also like a father, if he can, he is willing to give Li Mu his life.

"Who dares to kill my son!"

Seeing that the Demon Heaven Ruler was getting closer and closer to him, Li Mu had even felt the Demon Heaven Ruler Emperor's power sting his scalp, and at this moment, a furious voice suddenly sounded from the void, and then a blood-colored ancient sword pierced through the void and was directly above Li Mu's head.

"When !!"

A hard sound of fine iron striking sounded above Li Mu's head, and the domineering blow of the Demon Heaven Ruler slashed on the blood-colored ancient sword, but what Bai Yi and the others didn't expect was that the blow of the Demon Heaven Ruler, an imperial weapon, was actually blocked by the blood-colored ancient sword, not only that, but it also flew out of the Demon Heaven Ruler.

As soon as the Demon Heaven Ruler was shaken away, a middle-aged man in a gray robe walked out of the void not far from Li Mu's side.

This gray-robed middle-aged man has long hair and a messy shawl, he looks like he is in his fifties, but his eyes are full of vicissitudes, he is none other than Li Mu's biological father Li Chongtian.

As soon as he walked out of the void, Li Chongtian raised his hand and waved, only to see that the blood-colored ancient sword that had blocked the blow of the Demon Heaven Ruler suddenly turned into thousands of blood-colored sword shadows, and then rushed towards those Demon Saints who were still attacking Li Mu and the others.

The blood-colored sword light flew all over the sky, and the speed was extremely fast, and it soon rushed to the front of many demon saints.

Able to cultivate to the realm of the Demon Saint, the hundreds of demon clans present are naturally not weak, in the face of Li Chongtian's attack, they immediately turned from attack to defense, or sacrificed defensive magic weapons, or urged supernatural powers, and resisted the attack of the blood-colored sword light one after another.

"Click!!"

A crisp shattering sound sounded in front of a demon in the middle stage of the Demon Saint, but it was a cyan shield he sacrificed, which was pierced by a blood-colored sword light, and then fell on his body.

This demon in the middle stage of the Demon Saint was hit by the blood-colored sword light, and turned into a cloud of blood mist on the spot, and then was absorbed by the sword light, such a situation is not only in this place, but also under the attack of the sword light turned by the blood-colored ancient sword, it happens everywhere.

It took only four or five breaths before and after, and seventy or eighty people of the demon clan died under the blood-colored sword light, and none of them could leave a whole corpse, all of them were hit by the blood-colored sword light, and their bodies collapsed into blood mist, and then they were absorbed by the sword light.

"Withdraw quickly!!"

Seeing that something was wrong, Bai Crack hurriedly shouted at the remaining Demon Saints, and for a while, the remaining more than two hundred Demon Saints retreated together and retreated to Bai Crack and the others.

And as soon as the demons retreated, those blood-colored sword lights converged again, and finally became the blood-colored ancient sword again.

As soon as the blood-colored ancient sword turned into its original form, everyone present saw the two ancient characters "Killing Immortals" engraved on the blood-colored ancient sword.

"Father!!!!

Looking at Li Chongtian, who helped himself and others repel the enemy, Li Mu, who was already weakened by vitality, asked with surprise on his face.

"Mu'er, don't talk yet!"

Li Chongtian glanced at Li Mu up and down, and finally fixed his eyes on the gray lightsaber that was still inserted in Li Mu's chest, only to see him raise his hand and suck in the air, accompanied by a powerful suction force gushing out of his hand, the gray lightsaber was sucked out by him.

After sucking out the gray lightsaber, the blood light flashed in front of Li Chongtian, and the Zhuxian Array instantly appeared, and then the gray lightsaber was absorbed.

"Master, are you alright?"

As the magic sword in Li Mu's chest was sucked out by Li Chongtian, Niu Dali, who had already freed his hand, hurriedly supported Li Mu, and asked with concern.

"It's okay, I can't die yet, Tian'er, brother Wuliang, are you two okay?"

Li Mu smiled indifferently at Niu Dali, and then looked at Qi Tian and Wu Liangdao, who were not lightly injured.

"It's only half a step away from death, if it weren't for the life-preserving secret technique in the inheritance we obtained, our brothers would be separated by yin and yang. ”

Wu Liang said as he took out a pill and swallowed it, and began to heal his injuries.

"I'm fine, I can't die yet, don't worry, master. ”

Qi Tian also took out a pill and swallowed it, and began to close his eyes to heal his injuries, Li Mu saw this, and hurriedly opened his domain space, and took Qi Tian and Wu Liang into it, as for himself, he also took out a Saint Rank Pill and swallowed it.

"Who are you, I didn't expect that there are still many strong people in your Beidou hidden world, and there is actually a quasi-emperor peak level figure. ”

Looking at Li Chongtian angrily, Bai Crack, the leader of the White Feather Emperor Clan, couldn't help but ask.

"Elder Bai Split, if I guess correctly, this person should be named Li Chongtian, the father of this guy Li Mu. ”

Without waiting for Li Chongtian to speak quickly, Bai Yi beside Bai Split was the first to speak.

In order to find out Li Mu's whereabouts over the years, Bai Yi searched the souls of many cultivators in Beidou, and learned about Li Mu's past......