''From now on we are going to fight serious Altair!'' Shouted Issei as he moved forward quickly.

At the same time Altair put his hands in his pants pocket.

In an instant, Issei was in front of Altair with a left jab near his face.

Altair's eyes widened at Issei's speed, but even though he was impressed with this speed he still managed to dodge the punch by leaning his body a little to the left side and at the same time kneeing Issei in the stomach, making him bend over because of the force that Altair put into the blow.

[HP: 950/1000]

''Tsk, looks like things won't be as easy as before.'' Altair thought, as he prepared to continue attacking.

But just as he was about to launch a burst of blows at Issei, he had to stop and start dodging, as several swords suddenly appeared on the ground.

The person responsible for these swords was quickly found by Altair.

''Sword Birth... This is going to give me some headaches.'' Altair thought as he watched Kiba.

From what Altair knew this Sacred Gear of Kiba could create demonic swords, and even if it's not that strong for now, it was still a pain to have to deal with this ability.

''I need to keep a closer eye on him, his speed has already surpassed me because of the King's Domain.'' Altair saw that Kiba had picked up a sword he created and started running towards him.

Before long, Kiba made a feint against Altair who in turn did the same.

Altair tried to kick Kiba in the face, but Kiba however in a burst of speed disappeared, and quickly appeared on Altair's back. And without wasting any time, Kiba lowered his sword in a top-down motion aiming to cut Altair in half.

Then, Altair using his 'Sensor' ability, saw where the attack was coming from, and concentrating Mana in his feet, he turned in evasion, taking advantage of the pivot, and hit a kick on Kiba's chin, causing the blond to be disoriented for a while.

Wasting no time, Altair jumped up and attacked Kiba with a spinning kick to his face causing him to fly a few feet.

When he saw Kiba falling to the ground, Altair knew he couldn't lose momentum and quickly ran towards the blond man, this time he wanted to finish off his opponent quickly.

But it seems that things wouldn't be as he wanted them to be, for as he was getting close to Kiba, a huge bolt of lightning fell in front of him preventing him from advancing.

Looking up, he saw that Akeno was hovering in the air in her thunder priestess outfit, and in her hands were several ferocious bolts of lightning.

Altair couldn't think for long, because Akeno launched a huge ball of lightning in his direction, so all he could do was try to dodge it quickly as he moved forward.

But as he did so he ended up going the wrong way, and before he knew it it was too late, because a huge ball of energy had hit his body, causing him to be paralyzed for a few seconds.

And those paralyzed seconds were enough time for Issei to get close to him and punch him with an enormous amount of force, sending him straight to the ground.

Altair doubted that any ordinary human could survive receiving an open blow like this.

[HP: 900/1000]

''Things are getting complicated.'' Altair thought as he felt the force of Issei's blow, and also as he saw his HP dropped by a large margin.

Getting up Altair barely had time to breathe as another powerful blow came his way, but this time he managed to defend himself but not without taking a few steps back, showing the enormous force that Issei had put into this punch.

In defending himself from this blow, the ground below them both had shattered due to the force imposed by the blow.

Altair however, took advantage of the fact that they were both close, and connected a kick to Issei's chin and then punched his belly hard, causing Issei to spit up some blood.

[HP: 900/1000]

Not satisfied with the life he had taken from Issei, Altair connected a spinning kick to his face and soon after he did a crawl, knocking Issei down, only to then connect a knee strike to his back.

And seeing Issei on the ground, he knew the opportunity had come, so he quickly concentrated Mana in his legs, and delivered a kick with immense force to Issei's chest, causing the poor devil to run out of air and probably break a few ribs.

[HP: 450/1000]

Looking at Issei's remaining HP, he knew he would have to end this quickly, but just as he was about to fit another kick into Issei's chest, he saw an angry Kiba advancing towards him as he gave him a stab straight in the stomach.

But since he was already prepared, Altair just leaned his body to the side and easily dodged the stab, and without wasting any time, he gave Kiba a slight feint, just to shorten the distance even more, since he knew that Kiba would need to make a great effort if he wanted to swing the sword at close range.

Without waiting for Kiba to react, Altair elbowed him in the nose followed by a hook to his chin, and when Kiba staggered backwards due to the sheer force of the blow, Altair stepped forward once more and kicked him in the stomach, forcing him to fall to his knees.

Kiba who was on his knees panting raised his head and all he saw was Altair's golden eyes staring at him coldly.

''It's over for you.''

As he said this, Altair brought his leg down in a top down motion on Kiba's head, causing Kiba to sink to the ground as well as causing several cracks in the ground.

Altair had decided that he would no longer play around, he would take this fight seriously, for he feared that any wrong move he made would cost him his life. Furthermore he realized that he was not invincible, as one blow from Issei had taken 10% of his HP.

Looking at Kiba trying to get up, a smile appeared on Altair's face.

''Looks like he hasn't given up yet.'' Altair shook his head and stepped back a bit waiting for Kiba to get up for another round.

Issei who was not too far away, approached Kiba to help him get up, and soon Kiba was standing holding a sword next to Issei while facing Altair.

Kiba and Issei began to attack Altair at insane speed, but Altair was able to dodge and counterattack quickly.

When Kiba, used his speed to approach Altair, he used his 'Sensor' ability to see the trajectory of the blow and then closed the distance and started a sequence of extremely heavy kicks and punches.

When Issei approached Altair to punch him, Altair defended and countered with speed and precision, with blows that left Issei disoriented.

Altair was totally focused on this battle, for he knew that if he lost focus, he would lose.

When Kiba attacked, he used his 'Sensor' ability, and when Issei attacked, he used his speed to the maximum.

Thus, he could handle both of them at the same time with some ease.

This fight was beneficial for Altair, as he had finally learned how to use 'Sensor' during a fight, and it proved to be amazing, as he could now counterattack much more easily.

''Thanks to my past life profession, I don't have many problems in this fight.'' Altair had a peculiar profession in his past life, but it proved useful as it was serving perfectly for this occasion he was currently in.

Back in the battle, Rias and Akeno finally reacted and simultaneously attacked Altair, who just jumped to the side, dodging the blow and concentrating Mana on his feet.

And in a burst of speed he disappeared from where he was leaving only a mirage.

"I am here."

That was all Akeno heard before she widened her eyes, because behind her was Altair, who had concentrated a huge amount of Mana in his right leg, which was used to strike a blow to the back of her head, causing her to fall to the ground and raise a huge amount of dust.

''AKENO!'' Rias shouted concerned about the condition of his Queen.

When the dust disappeared, Akeno was lying on the ground, unconscious.

[Host leveled up!]

[Members defeated: 02/06]

''Those who do not recognize their true self are doomed to failure.''

After saying that sentence, Altair began to move towards Issei who stood there dumbfounded.

And when Issei realized Altair's approach, it was already too late.

Altair landed a left jab to Issei's face followed by a right jab to his belly, continuing with a left hook to his chin and then a kick to his belly and a knee to his chin again.

Altair knew that this alone would not be enough, so he decided to end it right away.

"Hwechook." Altair muttered.

Finishing with three extremely powerful and fast kicks, the first was to the right side of his face, and then another to the opposite side.

And the third was on the back of his head, so strong that the ground of almost 10 meters in front of Issei was destroyed with the force of the kick imposed by Altair.

After receiving this blow, Issei fell unconscious on the ground, and at times he would spasm slightly, showing the force that Altair had put into his blow.

Asia, Kiba and Rias watched this scene happen in slow motion.

But they knew that these blows from Altair were anything but slow, in fact they doubted that they could defend themselves from at least one of these three kicks.

Moreover, the three of them had one certainty, this blow was even more powerful than when he used it on Koneko.

''Monster!'' That was all that came out of Kiba's mouth.

[Host leveled up]

[Members defeated: 03/06]

Altair who was looking at Issei lying on the ground, had a smile on his face because he had the perfect phrase to use right now.

Grabbing Issei by the collar and lifting him up, Altair brought his mouth close to the left side of Issei's ear.

''You're Weak. Why? You Lack Hatred.''

After saying that, Altair dropped Issei's body to the ground, and began to look at the limbs left for him to defeat.

''Once this fight is over I will need to train for longer, even though my technique doesn't spend much MP, it is still stressful on the body.'' Altair had already decided his schedule for when this fight was over.

''W-Who are you? What are you?'' Rias shouted in disbelief as she saw that Altair had defeated three of her servants and he didn't even look tired.

''Who am I?'' Altair asked with a cold smile on his face.

"I am Altair Lockheart, a human.'' Altair replied sarcastically.

''Don't lie to-'' Rias couldn't finish her sentence, because she suddenly felt a huge fear as well as a sense of death coming towards her.

Altair seeing Rias trembling, gave a slight smile, but in his head he was wondering if he had gone too far, since even though Rias had been arrogant and proud since childhood, he didn't know if this was the best way to deal with her.

''I just hope she doesn't break, after all, it would be a shame for someone as beautiful as her to break.'' Those were Altair's sincere thoughts about Rias.

Of course he didn't let that show, since he still hoped to have a worthy battle, and he knew that would only be possible if they treated him like an enemy, otherwise it is likely that they will never show their true strength.

So... where were we again? You said you were going to turn me into a devil, right Gremory-san? Weren't you going to show me the power of high-level devils? Make me get down on my knees? Altair asked sarcastically with an innocent smile on his face which completely contradicted his words.

''Y-yes!'' Answered Rias hesitantly.

''Then come Gremory-san!'' Altair said opening his arms as if inviting her into a hug.