High-level martial arts: Contract cashback, invincible starting from the Zerg.

As the raging inferno gradually died down.

The disheveled Chen Feng removed his Demon Slayer armor and looked around at the battlefield where he had once fought and slew the giant wolves.

On this land licked by scorching flames, trees and rubble melted away, turning into crimson magma that surged endlessly across the surface.

The giant wolves, once as tall as a man, turned into a white mist almost instantly when the heatwave broke out. Their traces of life became ghostly marks on the scorched ground.

In Chen Feng's view, the power of this fireball tactic had exceeded his original plan. If he hadn't reacted quickly enough and glanced at the oncoming fireball, he might have been killed right there.

"Brother Feng...are you alright?"

As the temperature dropped, Jian Yao was the first to run to Chen Feng's side, anxiously wanting to check on his injuries.

Chen Feng glanced at it, nodded calmly, and said, "It's alright, no injuries."

"I thought the power might not be enough, so I had them use the Blazing Fireball. I didn't expect it to be this powerful," Jian Yao said embarrassedly.

Hearing this, Chen Feng was speechless.

For an average expert, there is indeed little difference between a fireball spell and a blazing fireball.

Especially in energy tests, the Fireball spell does not have the superposition of energy fields, so the difference in damage caused by it and the Fireball spell is actually very small.

However, what Jian Yao and the others released were nine blazing fireballs detonated at similar locations. The combined energy field of the spell was so powerful that even a powerful Earth-rank expert could be injured!

"Ugh!"

Chen Feng sighed. These people in front of him were indeed just as he had imagined.

They had little combat experience; they were all theoretical students who had been thrown into the exercise.

"I'll let it slide this time. But next time you have to follow my tactics exactly, understand?"

"Okay, okay!" Jian Yao raised her right hand above her head apologetically and said, "There won't be a next time."

After calming his teammates down, Chen Feng immediately looked toward the four-tailed fox's lair.

Chen Feng had been secretly watching the movements at the four-tailed fox's den, trying to see if it would take advantage of the chaos to launch a sneak attack.

However, to Chen Feng's surprise, the four-tailed fox inside the den did not appear.

As a former national-level berserker, Chen Feng had fought the Nine-Tailed Fox clan more than a hundred times and knew the temperament of these giant beasts very well.

They possess intelligence comparable to that of humans, and their agile and flexible movements make them natural enemies of the human rear guard.

If it really was a four-tailed fox, it would have definitely sensed Chen Feng's predicament earlier and launched an attack on them while no one was protecting the elementalists.

However, since the fireball exploded, there has been no movement from the four-tailed fox's lair, and apart from these giant wolf servants, no other creatures have appeared beside them.

"Something's not right..." Chen Feng muttered, looking in the direction of the ruins.

Just then, Wei Yang, who had been silent all along, walked up to Chen Feng's side.

His expression was numb, as if he had also realized what Chen Feng was worried about.

"Perhaps it's not a four-tailed fox inside," Wei Yang said.

"What did you discover?" Chen Feng asked.

Wei Yang's face was calm, but there seemed to be a flicker of light in her eyes.

"It might be possessed by a Shadow Demon. I saw traces of their movements, but the four-tailed fox's traces were very faint. I don't know if you noticed them?"

Shadow Fiend!

Upon hearing Wei Yang's words, Chen Feng couldn't help but frown.

During the war for the fate of the nation on Earth, Chen Feng had come into contact with this branch of the demon race more than once.

As humans completely tainted by darkness and evil, demons are theoretically far more aggressive, more insane, and more perverse than ordinary humans.

However, Shadow Fiend is an exception.

They are not only masters of strategic planning, but also assassins who carry out precise kills.

They were present in all the decisive battles against humanity, and in the later stages of the war for national destiny, they put aside past grievances and took the initiative to propose uniting with humanity to resist the invasion of the colossal beasts.

That's a highly forward-thinking assassin race, extremely difficult to deal with! And they shouldn't even be in the virtual arena for novice warriors!!

Thinking of this, Chen Feng immediately looked at the crowd behind him.

If Wei Yang's prediction is correct, then this Shadow Demon must have already left the Four-Tailed Fox's lair and come to the vicinity of the group, waiting for the best opportunity to attack!

Even so, Chen Feng didn't think that adding these newbies would make him a match for Shadow Fiend.

"Everyone, gather around me!"

While issuing the orders, Chen Feng also sent out a distress signal.

A blood-red signal flare flew out from Chen Feng's shoulder armor and soared into the sky, blooming into a huge blood-red firework above.

Just as the nine elementalists approached Chen Feng, Chen Feng noticed a suspicious figure out of the corner of his eye...

One of Jian Yao's female subordinates walked at the back, her movements strange and unpredictable, as if she was avoiding Chen Feng's gaze.

Chen Feng frowned and immediately took two quick steps to the side, trying to get a clear look at the person's face.

However, to Chen Feng's surprise, in just a few seconds, the girl's left and right hands were already engulfed in blazing fireballs, and her eyes became glazed due to excessive energy consumption, as if her soul was being extracted.

The next moment, a strange smile appeared on the girl's lips.

As he spun rapidly, the blazing fireballs in his hands flew towards the area where the crowd was gathered!