Weapon seller in the world of magic

Imperial Palace, Leon Empire;

At around 2 in the morning, when every official is in deep sleep while the patrolling of soldiers in the palace is as strong as ever, a figure shrouded in darkness appears in the sky without being detected by anyone.

He then raised his hand, stretching it forward and conjuring a seal, "Arise my soldiers."

A giant portal glowing in scarlet appeared in the middle of the palace grounds, alerting every soldier around.

As the nearby ones rushed toward the portal, hundreds of demons flew out of the portal, spreading in all directions.

"An attack," "Quickly inform the Commander," "Kaaa…"

Screams of agony followed the scene; the demons just attacked whatever appeared in their sight and killed whoever they laid their eyes on, causing mayhem everywhere inside the palace.

However, their operation was strictly focused on the premises of the imperial palace. The demons didn't chase after anyone who left the palace gates.

A few generals and even the Grand Marshal, who were currently in the palace, were forced to exit the residence. At the same time, the princes and the Emperor were kept protected in different underground bunkers linked to various secret tunnels.

Emperor Shi was isolated from the princes and the rest of the members of the imperial family and had a general and trusted guard to protect him. Originally, this shouldn't have been done so swiftly, but as the Grand Marshal sensed the presence of several Supreme Being demons, he took control of the palace and made the arrangements.

The Grand Marshal, Shi Zhouyang, unleashed the sword of Ifrit and swung it down. Streaks of flames traveled in different directions, killing all the demon soldiers in its path. The humans in the way weren't harmed in the least.

"Grand Marshal is here." "Everyone, fight." "Kill these bas*ards"

A new enthusiasm brought in the soldiers. The ones initially running away stopped and turned around to face the demonic creatures.

As the Generals with 7-circle realm strength joined the battle, the low-ranking demons were killed one after another; the Grand Marshal took care of captain-ranked demons. These demons each have a similar strength as the Generals, but none could defend themselves against the onslaught of the Grand Marshal's sword.

His divine-grade sword's flames burned them to death, one after another. In a span of mere thirty minutes, the demonic invasion seemed like it had ended, and the last one was also burned to death.

There were a lot of losses. Three Generals and more than six hundred soldiers were killed in the battle. On the other side, two hundred demons died.

The Grand Marshal was panting heavily, taking support of the sword to stand on his feet, "Is it over?" A General grabbed his shoulders, "Grand Marshal Shi… are you alright?"

The four-and-fifty-year-old Supreme Being nodded weakly, "It has been a while since I battled so intensely. Need some rest." As he sat down to regulate his breathing and replenish his ether energy reserves, another General ordered the soldiers, "collect the corpses. At dawn, we will give them a respectful cremation."

"For that, you have to stay alive, human," A voice echoed in the surroundings, changing everyone's expressions immediately.

The Grand Marshal, the Generals, and the rest of the soldiers raised their heads to look at the sky as a well-dressed man, resembling a nobleman or a scholar at one glance.

Outwardly, he does look like a human with scarlet eyes, but the experts with superior sensing abilities could sense that terrifying evil aura emitting from the stranger's body.

The Grand Marshal was forced to stand up, raising his sword, which started burning in thick Ifrit's flames, "Who are you?"

Reaching everyone's visible sight, the demon gave a gentleman's bow, "Grand Marshal Shi, my name is Mephistopheles. You can call me Mephisto. Under the orders of Demon King Alloces, I'm here to exterminate everyone here."

"Demon King Alloces? Who was he?" The question appeared in everyone's mind. The Generals couldn't help but look at each other. Even the Grand Marshal furrowed his brows, "Are you an ally of Lu Zhen? I have heard about the appearance of a demon in a war between Western Yan and the Phoenix Empire. I knew that Lu Zhen is associated with demons."

Mephisto let out a grin, "If you know who that is, you will die of heart stroke, human. Anyway, are you humans ready for round 2?"

*Snap*

With a snap of his finger, another portal appeared randomly in the middle of the imperial gardens, and demons rushed out once again. This time, all of them are captain-ranked demons, each of them having the strength equivalent to that of a 7-circle realm Spirit Warrior.

The flames around the Grand Marshal's sword became more intense. He raised the sword, stretching above his head, "Die."

He was about to swing it down, but the blade didn't come down. Mephisto was seen teleporting to right above the Grand Marshal and grabbing the blade of the sword with his bare hand. The flames died out with Mephisto's demonic energy soon after.

The nearest General attempted to attack Mephisto, but the latter gave a kick to his face without even taking a look at him.

The General's face exploded, and blood splattered on the faces of nearby generals as well as the Grand Marshal.

Grabbing the blade, Mephisto flew up. The Grand Marshal didn't lose the grip on the sword and flew along, distancing himself from his subordinates and leaving them an opportunity to deal with the demons.

The Grand Marshal poured more of his ether energy into the sword, but the flames of ifrit didn't light up on the blade as it was overwhelmed by demonic energy.

He let go of one of his hands on the hilt and attacked Mephisto in the abdomen, unleashing a torrent of flames through his palm.

Mephisto's body was struck head-on at a very close range, but the demon simply tilted his head to look straight into the eyes of the old man, "Unfortunately, your power isn't enough, human. Anyway, now it is my turn." He raised his free right arm and stretched forward.

The Grand Marshal's facial expression changed.

Some of the Generals were also about to charge forward at the incoming demon captains, but then a groan escaped from the old man, forcefully grabbing their attention.

When they raised their heads, they saw their Grand Marsha's heart was taken out by Mephisto. With a heart in his right hand and the sword in his left, Mephisto looked down at the falling body of the enemy.

"Grand Marshal Shi…" "Grand Marshal is dead," "We are doomed." "Bless me, Oh Goddess Xihe" "Run away"

At once, hundreds of soldiers left their posts and started running away in fear.