With the change in Yue Feng's body, the students below also began to riot.

"You, why do you do this......", one of the students watched his friend pull out a blood-stained knife from his body, and fell down in disbelief, unable to see until he died.

One stone shook a thousand waves, and such a killing gradually spread, and dozens of students fell in a pool of blood in an instant.

"Some of the students were controlled by Yue Feng, and everyone spread out and kept a distance from each other. Only then did Chang Qing react and shouted loudly.

With Changqing's reminder, the trainees quickly dispersed like a tide, taking out their weapons, and everyone carefully guarding their surroundings.

At this time, Yue Feng had already completed the demon transformation, unlike Yue Qing, his change was more thorough, his whole body was completely invisible to the breath of human beings, all of them were covered by large and small black scale armor, a pair of demon wings stretched out from his back, and his slender fingers were completely replaced by a pair of sharp claws, which looked very terrifying.

After "Tata" became a demon, Yue Feng stepped on the black fog and slowly walked towards Yu Lao and Changqing, and the powerful force made large pits appear everywhere he stepped on.

"It's a great feeling of power...... I wanted you to wander for a few more days, but since you are dead, the Buddha-figure will fulfill you. Yue Feng Wei smiled, because of the demon, he spoke a little stiffly.

Yu Lao's expression also became solemn. From the point of view of breath, Yue Feng's strength after becoming a demon has improved by more than one realm compared to before. He had also fought with the demons and knew the horror of the demons. Especially the thick demonic energy, which will greatly reduce the combat effectiveness of the martial artist in it. Although he is a fifth-level great martial artist, he really faces the current Yue Feng, and the chance of winning is very small.

Glancing at the students who fell in a pool of blood, Yu Lao nodded at Chang Qing, and the two of them rose into the air, one left and one right suspended in mid-air, confronting Yue Feng.

"Sure enough, it's stubborn, in this case, you still have to resist! Then I'll take care of you first, and then avenge my youth." Yue Feng unfurled his magic wings, and the black demonic mist wrapped his body, flying towards the two of them like meteors.

Different from the fighting style of the Terrans, the strongest of the monsters is the melee attack, once the Terran warriors are surrounded by demonic energy, unless the realm is far beyond the other party, it is destined to be a tragic end.

"Hurry back. Yu Lao greeted Chang Qing and quickly fled into the distance.

However, Yue Feng's speed was too fast. Chang Qing was still a step late after all, and was engulfed by the demonic mist in an instant.

A terrible shout rang out from the black mist, and then a figure fell to the ground like a kite with a broken string. Blood spilled down from mid-air, like a rain of blood.

Just a face, Chang Qing was seriously injured. Faced with such a result, Yu Lao sighed helplessly. It seems that he still underestimated Yue Feng's strength.

If he gets out alone, there is naturally no problem for Yu Lao. But looking at the vivid faces below, he couldn't do that.

"What's the joy of life, what's the fear of death. Old friend, for the sake of the original promise, why should I bury this old bone here?" Yu Lao glanced into the distance and said softly.

"Yue Feng, come on, what means are there, the old decay will follow. In the face of this mortal situation, Yu Lao's face was full of perseverance.

"Why do you say it, it's like life and death. Just when Yu Lao was determined to fight to the death, a voice suddenly sounded in his ears.

"You old ghost, this time it's finally timely. Listening to that familiar voice, Yu Lao was overjoyed.

The person who came was none other than Bai Li Feng, the head of Shengtian Academy.

"Okay, I'll talk about it later, it's important to get down to business first. Bai Li Feng quickly understood the situation in front of him.

"Yue Feng, my Holy Heaven Academy has not treated you badly, why do you want to collude with the Demon Clan?" A cold light flashed in his eyes, and Bai Li Feng scolded angrily.

"Can the Terrans give me such great power? The reason why I stay here is because I knew a long time ago that deep under the academy, there was a monster suppressed - the Heavenly Demon. I have worked hard to get to the vice dean, and thus gain the power to get close to the Heavenly Demon, how can I let go of this opportunity to show my ambitions?" Yue Feng said with a smug smile.

"Crazy!" Bai Li Feng scolded, and then moved his gaze to Leng Yan, who had been standing by and watching.

Stared at by this sharp gaze, the cold flame looked extremely unnatural. He hesitated to say something, but he couldn't.

"Leng Yan, I can not blame you for what you usually do. But at this time when the survival of the academy is in danger, if you care about your own gains and losses, don't blame me for being unsympathetic. Now you are given two paths, either you stand on the opposite side or you fight side by side with us, the choice is yours. Baili Feng said coldly.

Cold Flame fell silent. After a long time, he finally made a decision and walked in the direction of Yue Feng.

"Righteousness, cold flame, the one who knows the times is Junjie, you will be glad for your correct choice. I haven't done it for so long, I just want to see a good show, and I'm very satisfied with the result. Baili Feng, I have to say, you are really a failure...... "Looking at Bai Li Feng's deflated appearance, Yue Feng was indescribably happy.

However, he didn't notice that in a corner not far behind him, a thin figure was meditating with his eyes closed, and the black mist was surging towards the inconspicuous body at an imperceptible speed.

"Okay, I've seen enough of the play, so I'll perform it next. Yue Feng flapped his wings and flew towards Baili Feng and Yu Chen. Obviously, he didn't take the two of them seriously.

With the addition of Baili Feng, the situation on the field is much better. Although Baili Feng's realm is one level higher than Yu Chen, judging from the strength of both sides alone, he can't help Yue Feng after becoming a demon. But his elusive teleportation made Yue Feng also quite a headache.

"Leng Yan, you still haven't come over to help?" in a hurry, Yue Feng shouted.

"Yes. Leng Yan agreed and joined the warband.

Originally, the two sides were evenly matched, but with the entry of Cold Flame, the balance was slowly broken. Baili Feng and Yu Chen were suddenly overstretched.

Seeing that victory was in sight, Yue Feng's mood relaxed. At that moment, he felt something unusual. The black mist, which was originally thick like a gel, didn't know when it became thinner.

How could the demonic qi have weakened so much? Yue Feng was stunned, and the attack of the demon's claws also stopped. Following the direction in which the demonic qi disappeared, he finally saw the thin figure.

"Duan Yun, it's you again!" Yue Feng gritted his teeth with hatred. Forcing Baili Feng and Yu Chen back, he turned around and flew towards Duan Yun.

However, the moment he turned around, Yue Feng suddenly felt a sharp pain coming from the position of his heart. He hurriedly looked down, only to see a sharp blade piercing through his chest, black demonic blood dripping down the tip of the blade, and the ground was corroded with the sound of "Ziz".

Turning his head, Yue Feng saw a strange face.

"Leng Yan, how dare you sneak up on me from behind?" Yue Feng was angry and annoyed.

"I'm sorry, I don't have any intention of being a lackey of the Demon Clan...... Leng Yan pulled out his blade and said coldly.

The demons and the human race, the heart is the most vulnerable place, and with the withdrawal of the sharp blade, Yue Feng fell from mid-air.

If it was usual, he could have repaired his heart with his demonic qi, however, at this time, Yue Feng could only look at the thin black mist and closed his eyes unwillingly. The so-called grand ambition, the so-called ideal ambition, came to naught with the dissipation of the black fog......

With Yue Feng's death, the puppet students who had been controlled by him before gradually regained their clarity in their eyes, and they cried bitterly when they looked at their friends who fell under their butcher's knives.

The entire Shengtian Academy was shrouded in a dull atmosphere......