The Magician of Sound

After killing Nicholas, Ayaka wanted to head toward Kai, but Tasha stopped her. Even if she flew toward them, Tasha would teleport her back, so she could only stay here.

"Just take a look at your pale face… Haiz, you are reckless." Tasha sighed. "I am sure it hurts just by moving slightly."

"This is not a normal world, so I can be reckless again and again, considering I am not as strong as you. In fact, even the people outside won't have much expectation of me." She looked down, a bit disappointed.

"This lass…" She shook her head helplessly, snapping her finger and creating a magic circle. "Teleportation."

They arrived back in the woods, finding Evan to tend her injuries.

"Heal this reckless girl first." Tasha pushed Ayaka to Evan.

"Sure." He simply nodded, wrapping Ayaka's body in his healing bubble.

"Listen here. No matter what you do today, never do something like that again? I am sure even Kai would talk about this after the match," Tasha said.

"Umm…" She could only look down.

"Anyway, just rest here since Kai will end the fight for us."

Little did they know that Isabelle was in the sky, trying to find Tasha and Ayaka.

Michelle was far from this place, while Tasha and Ayaka had their own respective opponents. This might be the simplest but most brutal plan for Kai Carter. 

As long as she had enough time, she could shoot them down one by one from the sky before defeating him from the air. Probably, this was their ultimate plan by riling Kai.

On the ground, Kai was staring at her, looking very pitiful. Even if he was an unorthodox sound magician, it was still impossible for him to reach her.

The fact that they had fallen for the enemy's plot and that defeat was but mere moments away made others lose hope. For Kai, who was well versed in reading into the future with his mind, it was all more clear.

It was at this time, Kai showed a change of expression, making them gasp. It was a smile instead of a dispirited look. 

"Outplayed me?" Kai shook his head.

"This…" Isabelle dropped her jaw, noticing that her teammates were already gone, leaving only her in this place alone.

Even without Sanae telling him, he already knew that they had finished their battle, though he needed to have a talk with Ayaka after this. 

"You…"

"You are the last," Kai smirked, dropping one of his swords to the ground before raising his hand toward her. "With ten percent of my magic power, I can finally do this."

A green magic circle appeared on his hand, creating a cylinder like a cannon.

Isabelle noticed the change in the atmosphere, looking at Kai with confusion.

"What are you doing?" She pointed her weapon at him."

"You will experience it right now." He smiled, activating the magic circle. "Resonant Beam."

Even after activating the magic circle, it did not shoot anything or produce any sound, making her even more confused. She thought it was just a bluff to make her come down, so she aimed her weapon at Ayaka, trying to kill as many as possible. Even if she died, it would only after she killed at least three people.

She looked through the scope, carefully aiming it for her head to make sure she died with this shot. Unfortunately, Kai's attack finally arrived.

'Shaking?' She blinked a few times, feeling that her eyes were shaking. She put down her weapon, looking around to adjust her eyes. The shaking did not stop. Instead, it was intensified. It felt like her eyeballs were shaking and would soon jump out of the socket. She started seeing colored lights at the periphery of her vision and ghostly gray regions in the center.

"Kh…" She bit her lips, looking down because of the pain until she saw Kai and realized what happened to her. "You…"

Kai smirked. This was the magic that everyone had forgotten to talk about after she challenged his group for a battle. 

He took the concept of breaking a glass with sound if the sound was at the same frequency with the glass. 

The low frequency of sound and its corresponding long wavelength made it much more capable of penetrating her body, creating an oscillating pressure system. He could make different parts of her body resonate depending on the frequency.

Because sniping relied on eyes the most, as long as he stopped her eyes, it would solve the problem. This was why he was targeting her eyeballs. Because he could not really test this magic to Michelle and the others, Isabelle would be the perfect experiment.

At first, he used relatively safe sound levels, below 100 dB, that occurred at 19Hz, making her eyes start twitching. He slowly raised the intensity to 110 dB, thus giving the current effect. Luckily, she decided to go down after this effect. It would become worse if he actually used more.

And he used the concept of Long Range Acoustic Device to send the sound wave as the sound coming from the LRAD was also relatively directional. It did not disperse as much as sounds from typical speakers. People next or behind the device like him, could still hear the sound, but were not as loud. Kai even used his Sound Insulation around his ears as protection.

He had gone through trials and errors to check the sound waves' phase, the size of the magic circle, and the properties of the air to create more directional sound. Unfortunately, he had yet to see whether this technique could kill the magical beasts or not.

He knew about the frequency of human eyeball, which was 19Hz, as for magical beast eyeball, he needed to go through another round of trials and errors.

This was a good technique to fight people in an open area since not only was it lower the range than the human ear could hear, it was deadly.

Unfortunately, if he showed more, he felt his life would be targeted as the danger level of this technique was similar to Michelle's shadow walk. After all, he could assassinate someone without him noticing by this technique.

The magic circle disappeared as he looked at Isabelle. She said, "Since it is like that, I will defeat you first. I haven't revealed this technique to anyone, so be grateful and die." 

"..." Kai was dumbfounded, saying inwardly, 'Girl, I have shown you this technique that I haven't revealed to anyone, Why don't you be grateful to me, fall from the sky, and die?'

She threw her weapon to the air, clapping her hand. Unlike Kai's light green magic circle, her magic circle was dark green. Four balls wrapped by the wind rose from the magic circle, giving an ominous pressure. The four orbs were hovering around her, creating a rectangle.

"God of Wind, Aeolus."

He furrowed his eyebrows, sensing a dense wind power in those orbs. 

*Fwoosh!*

A change of sound was enough for him to recognize a movement from the orb on the top left.

"It's coming!" He leaped backward, observing what those orbs could do first. At first, he wanted to use his Lullaby to disrupt her brainwave, allowing him to break those orbs with the loss of control. Unfortunately, he was too far and the sound would not hurt her enough to make her lose focus.

"Bam!" The orb shot a condensed wind bullet, creating a hole right on Kai's previous spot. Seeing the effect, he deactivated the sword in his left hand and made his Oscillation Shield.

He charged at her with his shield in front, thinking it would be enough to stop those orbs. 

Isabelle only smiled and released the second orb. "This is my ability I have suppressed for a long time."

After the second orb shot its bullet, the third and fourth orb released its bullet in succession. Kai was not afraid of him after witnessing the effect on the ground. Compared to her sniper rifle, these green balls were like pistols.

Kai raised his shield, blocking the bullets without any hesitation. 

"!!!" Another attack came from the front. He adjusted his form and pushed his shield forward, giving more force to fight this new attack. 

"Boom!" The attack came from Isabelle's sniper rifle. Unlike their first position, Kai was not pushed back as they were on equal ground.

He looked around, noticing the movements from the orbs and leaping toward her.

The orbs aimed at him, shooting him down, but Kai simply raised his shield to block two of them while using his sword to destroy the other two. 

As soon as he arrived in front of Isabelle, he slashed his sword downwards.

She might be a sniper, but her close combat ability was also top-notch, allowing her to fight even Nicholas to a standstill. She simply raised her weapon, blocking Kai's sword before using the orbs to shoot him.

"!!!" Kai took a step back, avoiding those bullets before changing his stance again as Isabelle had activated her magic and shot him.

He had noticed that she needed a few seconds before she could shoot either her sniper rifle or the orbs. In an instant he blocked the attack, he released the magic shield and took out his sword again, making a full round attack.

Her close combat might be good, but for Kai, who could predict the movement by a simple movement, it was still far too low.

The moment Kai's swords reached her sniper rifle, he faked it by pulling the swords back and kicked her sniper rifle to the air.

"Kh." She gritted her teeth, shooting him by using the swords.

Kai merely jumped in order to avoid and did not forget to claim her life. One second after he landed on the ground, her head fell, concluding the match.

"You are a strong opponent." Kai closed his eyes.

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