The Magician of Sound

A few hours later, 

Another sign appeared in the sky, projecting 'Phase 3' to all soldiers in the attacker group.

Kai's group was in front of the other, leading the pack. 

"You have brought your night vision, right?" Yuki put down a box full of night vision while handing one to Shirotsuka Sanae.

"Yes. We bought it after getting our first reward." Kai nodded. "Besides, there should be enough light on the original path. We only need it for speed."

"Yeah. We are attackers, so we emphasize speed. All of the attackers will need one night vision, so they wouldn't be disturbed. However, another reason was the supply. There is no way we can give the whole six thousand a night vision because it won't be only us who need it." Yuki nodded.

Kai also understood. There were simply too many battlefields at the moment, so their resources were dispersed among those battlefields and military bases. Kai wore the watch and set the timer before saying. "One minute before entering the tunnel." 

The others took a deep breath, checking if they forgot anything.

The moment the counter reached zero, Yuki and the other commanders in charge of the attacker group, Henry, exchanged looks without saying anything.

They also leaped to the entrance, followed by their own groups, including Kai's group. The other groups began entering the Underground Nest one by one.

According to Yuki, they didn't need to activate their night vision yet, and Kai already knew about it as he was the strategist. 

As soon as they entered the Underground Nest, the tunnels were filled with blue lights. The light itself was quite bright and could illuminate the place a few meters to ten meters on its surroundings. 

If one observed carefully, this light originated from a light bulb with a magic core as its fuel. They were planted on the wall, so magical beasts or soldiers didn't accidentally step on it. 

Their group followed the light until they finally found the spot where they needed to start. It was a pretty deep place surrounded by many magical beasts. Kai's expression turned serious, and looked at Yuki. 

"Wear your night vision. We will meet them in a second." Yuki nodded.

Kai pulled down the night vision and adjusted it to his eyes level. The dark world finally turned to green in his vision, and he could see in this darkness. 

As for Michelle, she was comfortable with this environment as she could shine in this place. The dark energy started enveloping her before black flame gushed out from a few spots on her body.

"Moonlight Shadow!" This was Michelle's support technique, where she would get an additional strength with the power of darkness. Usually, she used it under the moonlight, but this place was fabulous as well.

She turned to Kai and nodded. 

"Kai, Michelle, Ayaka, Adrian, and I will enter first to gather their attention. Mela, Greta, Tasha, and Sanae will come right after and attack them. Nita will be here to protect Evan Young. Are we clear?" Yuki asked.

"Yes. We should use this strategy when we are here rather than having complicated fighting styles because we are not familiar with each other." Kai added. 

All of them nodded and looked at both leaders. 

"Let's go." Kai and Yuki said in unison while advancing forward.

This was a tunnel leading to another spacious area like the one Isabelle encountered a few hours ago. However, this one might be one of the biggest areas that could host almost a hundred magical beasts at once. 

Kai went inside the room and immediately started with a few magical beasts. "Three ants, one mouse, and one termite…"

Noticing Yuki already leaped toward the magical beasts, Kai did the same and jumped forward. The ant in front of him was still confused, giving him a precious chance.

Magic circles enveloped the spheres on his swords before giving him a nice amount of vibration. He slashed his sword at one of the ants. 

The ants quickly used its mandible to grab Kai's sword but were stopped by his other sword. In fact, its other sword cut this hard mandible in almost an instant. Kai's sword that originally went toward the ant's head sliced the head cleanly. "Ha!" 

The magical beast stared for a second when they saw this, never expecting it would turn this way. The ant just died with a single swing. Kai wasted no time and leaped toward a mouse that was the closest to him and slashed his sword. 

Surprisingly, the mice fought back by sending its claw toward Kai. Had his enemy only used a normal sword, the mice might be able to stop it. 

"Ha!" Sadly, his opponent was Kai. The moment Kai's Vibration Sword broke the mice's claw, the sword moved forward and aimed at its head. The cut was very clear, and Kai felt little to no resistance in cutting something like this. 

Blood splattered as Kai sliced the mice's head.

On the other hand, Ayaka shattered the ant's head with her spear, showing how powerful she actually was. Michelle also did the same. She sent her Shadow Slash and channeled it with the magical beasts body.

The Shadow Slash circled around the ant body, cutting the ant into pieces.

At the same time, Yuki used her one and a half meter long dual handed sword to cleanly cut the head. Unlike Kai's Vibration Sword, she used entirely her strength and her weapon weight. The same applied to Adrian, who fought with his sword and spear. 

In a moment, they already killed more than ten enemies.

"Scree!"

The ants let out a sound to alarm the colony in this room. More than eighty magical beasts didn't hesitate and charged at them. 

Kai and the others already knew their role. They leaped to the air before landing on top of the ant's head.

The magical beasts swarmed at them, but all of them already killed the ants before jumping again to the center of the enemies. They were baiting them, so the next group would come. 

"Lightning Piercer!" 

A lightning arrow was released from the darkness and pierced an ant's head, creating a quiet hole and killing it almost instantly. 

The arrow became the signal that the others finally joined the battle.

Shirotsuka Sanae arrived behind the magical beasts and released her star knives from the right and left. A green magic circle appeared on her star knives and boosted its speed and power with the wind. 

*Bam!*

It crushed the skeletons. No matter if they were termites or ants, magic circles would appear again and again until they were shattered. At the same time, a few ants were also in the range of her swing, so after destroying the first two creatures, she enhanced her Star Knives again and killed a few more.

On the other hand, Yuki's teammates might not be flashy, but none of them were actually worse than Sanae. She even got surprised by their power, thinking she already didn't need her after observing her current team. 

Kai had no time to worry about her feelings even though he realized the sudden skipped beat of her heart. He continued in killing the magical beasts as quickly as possible. 

Maybe it was the difference in strength, or they were just lucky. Nonetheless, they killed a hundred magical beasts within five minutes. Thinking about this, Kai had hope in killing a thousand of them with this group. 

They didn't have time to waste, so he came to Yuki and said. "There is only a passage to another room like this with only fifty magical beasts there. In that passage, we will have two tunnels. Do you want to go separate ways, or will we continue like this?"

"We will go like this. Although splitting is very tempting, we should stick to the original plan." Yuki answered. "You shouldn't focus too much on the mission from your Teacher. I know that I'm scared of her, but it shouldn't ruin this mission as a whole." 

"I understand." Kai nodded. "We will fight together for the rest of this mission, so we can know each other's abilities and increase our efficiency."

Yuki agreed with a smile. "Let's go."

Hearing her signal, the team didn't waste a single second and ran to the next passage.

Kai and Yuki took the front in this passage and killed the magical beasts that were roaming around this small tunnel with only one second lost from each kill. 

Sanae looked at their back while having a reminisce. She was the one who should be next to Yuki, just like in the past. However, she learned that after fighting in this base for a few years, Yuki's prowess more leaned to this base's style rather than her past style. In other words, had she forced herself to fight alongside Yuki, the result might not be like she hoped. 

Kai and Yuki still continued fighting the magical beasts. The group slowed down a little bit when they encountered the monster to match their pace. The moment they entered the next room, they overwhelmed the magical beasts with their powerful strength. At this step, Kai could assist Yuki by striking at a few monsters around her and bringing the magical beasts that targeted him. 

The two sides of magical beasts crashed with each other, and the fighting suddenly became easy. Not only her, but Adrian was also able to help Ayaka and Michelle by stopping the magical beasts and letting them kill it. 

On the other hand, the other groups didn't have too much improvement. Although their distance and role didn't really need them to coordinate, Sanae also became a reason. She looked like she was competing with Yuki's current teammates, so the other group became a rivalry instead.

No one complained about this, because it was also good. Kai asked Tasha to watch them over, so they didn't 'trip' and get into trouble.

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