The Most Powerful System

Under Qi Yu's slap in the air, the extremely fierce wind power, abruptly slapped Mephisto, who was rushing forward with his fists raised, and his huge body of hundreds of meters flew away, flying across the entire city. The third moat, which is full of magma sea below, slammed into the Demon King's Temple in the rear.

The body of such a huge dimensional demon god was knocked down, and the entire eerie temple of the demon king behind him was immediately crushed to pieces!

"Aw--"

Mephisto groaned.

He climbed up from the ruins of the temple in a state of embarrassment, his face distorted with anger, and the scarlet eyes that looked at Qi Yu were filled with burning anger and horror!

This human youth has never made a move before, and Mephisto does not know his strength.

However, under his reasonable guess, he felt that the opponent should not be too strong, otherwise, from the very beginning, he would directly join the whole battle, thus playing the most important role!

However!

Now that he made a move, Mephisto suddenly realized that the opponent's strength had completely exceeded his expectations!

At this time, he is not the normal body of a humanoid old man, but the real body of the Dimensional Demon God after the seal is lifted, and even possesses the absolute power to destroy the entire hell world!

But, even so, he was slapped away by that ordinary-looking human youth?

This... is unbelievable!

"Except for the alien dimensional demon god who invaded the hell dimension thousands of years ago, I have never faced such a powerful opponent in all these years..."

Mephisto stared at Qi Yu in the distance, gritted his teeth, and muttered to himself.

During the entire battle just now, because he knew the strength of his Dimensional Demon God Body, he didn't go all out, and he didn't even fight very seriously, but now, he knows, he has to put up all his energy to fight seriously , and went all out without reservation!

He had just made up his mind, but at this moment, the brows on his red devil face suddenly frowned!

When looking at this Qi Yu, he seemed to remember something in a trance.

"wrong!"

"these years,

In addition to the alien dimension demon god, I have actually met another powerful existence! He is a superhero in the world, known as the Terminator, and my child, the Witch Heart Demon, died at the hands of that guy..."

Now Qi Yu's appearance and demeanor came into his eyes, especially the gesture and power of the slap just now, which reminded him of the human hero who killed his son a few years ago.

"Could it be that……"

Mephisto has already begun to strongly suspect that the human youth opposite may be the human hero Terminator back then!

It looks more and more like it!

In fact, when he first saw Qi Yu, a feeling of deja vu appeared in his mind at that time. He always felt that this human youth seemed to have seen it somewhere before, but he just didn't remember it for a while.

After all, the Terminator back then was the image of wearing a black skull mask and a dark cloak on his shoulders, but now the other party is just dressed in an ordinary person, so that Mephisto did not associate him with the Terminator who killed his son. Together, this is the reason why he didn't recognize the other party as the Terminator when they first met!

But now, everything is clear!

"You...you are the hero terminator in the world?"

Standing on top of the ruins, Mephisto's gigantic body of hundreds of meters pointed to Qi Yu in the distance, asking questions. The voice was rough, like thunder.

Hearing this, Qi Yu raised his eyebrows slightly, thought it was funny and smiled lightly: "Oh? Did you recognize me?"

"You turn into ashes, I recognize it!"

Mephisto gritted his teeth with a ferocious expression, and looked very annoyed. He scolded angrily, "My child, the Witch Heart Demon, died at the hands of a murderer like you!"

"Oh, is it so?"

Qi Yu pretended to be stupid on purpose, pinched his chin and thought about recalling, and then said, "Oh, I remember, it seems that there is such a thing!"

"Hmph! How dare you play me?"

Seeing the other party's indifferent and arrogant attitude, Mephisto couldn't help being furious again. If eyes can kill, in fact, his scarlet eyes burning with the flame of revenge are enough to kill Qi Yu ten times.

"Although my son, Witch Heart Demon, is a traitor, only the Demon King can judge him!"

"You killed him back then, and today, I will also use your blood to pay homage to his soul!"

His eyes were about to split open, his fists made of devil claws were clenched and rattling, his whole body was boiling with a strong killing intent, and the strange and uneasy devil energy was overwhelming, and he couldn't wait to tear Qi Yu to pieces!

"It is understandable to avenge my son, but are you sure you are my opponent?" Qi Yu spread his hands and said calmly.

Hearing this, Mephisto turned his head up to the sky, with a huge grin on his face, then lowered his head to look at Qi Yu on the opposite mountain, and said, "I'm not afraid to tell you a secret. Your level of strength will drop a lot, in that case, I admit that I really can't deal with you."

Speaking of this, the grin on his ferocious face became even wider, "Unfortunately, in this dimension of hell, I am the king, the symbol of absolute power!"

As the biggest devil in the dimension of hell, the king of all demons, Mephisto is already at the peak of the horror level in the hell world.

When the real body of the demon god of this dimension is sacrificed, it can even reach the overlord level!

However, when he is in the sun-drenched mortal world, in the mortal world under the protection and blessing of various sacred religions, the life level of this old devil king will be suppressed by the rules of the world, from the level of terror to the level of transcendence, even Unleashing the real body of the Dimensional Demon God can only display horror-level strength, and he is not even an opponent of the supreme mage Gu Yi. Gu Yi can lead the entire Kama Taj mage group to chase him. Otherwise, if he were not bound by the rules of the human world, the current human world would probably be reduced to purgatory under his claws.

It was precisely because of being suppressed by the rules of the human world back then that Mephisto watched his son, the Witch Heart Demon, be killed, but he held back and did not make a move.

After all, even if the real body of the Dimensional Demon God is sacrificed in the human world, the level of strength is still a lot worse than that of the son-killing and enemy-terminator. If he makes a rash move, he may even risk his father's life.

But now here, in his own hell dimension, he is amazing!

Confidence also swelled up!

"Terminator, I studied your strength back then. In the upper world, even if I try my best, I am no match for you at all."

A gloomy murderous intent flashed in Mephisto's eyes, "It's a pity that you will definitely die a miserable death here!"

As the words fell, Mephisto unreservedly let out the aura of his whole body, and the monstrous and fierce demonic energy made the entire space of the heart of hell tremble faintly!

"Ok?"

Qi Yu frowned slightly, he could feel that the breath of the other party had suddenly improved a lot.

So look into the past.

Suddenly, he discovered that the violent aura erupted by this old guy was even stronger than the dark titan Thanos he had killed not long ago!