Chapter 115: Decisive Battle

A few days later, Zero's mansion.

Xiao Yue stayed alone in Zero's room, absorbing the 【Energy Crystal】 to transform into her adult form, while Zero stayed alone in the courtyard, staring blankly at the sky.

For the past few days, the regions under the jurisdiction of both the Demon Slayer Corps and the Pillars had been unusually quiet, more so than ever before.

However, Zero knew very well that the quieter the time, the more ferocious the coming storm would be!

Of course, that was for this world.

And now, all of this would end tonight, drawing a period to the days he had spent in this other world.

Kibutsuji Muzan, that little brat, would also say a final goodbye to this world tonight.

Just as Zero was deep in thought, Xiao Yue walked out of the room and came to the backyard.

After absorbing the energy from the 【Energy Crystal】, she had transformed into her adult appearance.

Standing at 1.65 meters tall, her hip-length, deep-sea blue hair hung down freely, and her exquisite features always exuded the temperament of a cold and aloof royal sister.

She wore a white shirt, a black cloak, and a knee-length pleated skirt; black long silk stockings accentuated her slender, beautiful legs, and she wore a pair of black high-top boots.

Her eyes revealed maturity and confidence, and every movement of hers seemed full of steadiness and capability.

"Master, Xiao Yue is ready," Xiao Yue said.

Zero nodded, stroked Xiao Yue's head, and smiled: "You've worked hard all these years in this other world."

Feeling the warmth of Zero's palm, a blush climbed onto Xiao Yue's face involuntarily, and she smiled: "It wasn't hard work; being able to help you, Master, makes me very happy too."

"Since you say so, I'll give you a small reward first. Is there anything you want?"

"Hmm..." Xiao Yue pretended to think, then slowly opened her mouth: "Master, can you... give me a hug?"

Seeing this, Zero gently pulled Xiao Yue into his embrace.

Ever since coming to this other world, Xiao Yue had become more and more like a human, possessing many feelings and emotions unique to her.

Xiao Yue also stretched out her arms to wrap around Zero's waist, leaning against his chest, carefully feeling his aura and listening to his heartbeat; there was an indescribable warmth, a familiar feeling she hadn't experienced in a long time.

…………

In the afternoon, Luo Li led Kanae, Mitsuri, Shinobu, Kanao, Senjuro, members of the Butterfly Mansion, the Ubuyashiki family, and Tamayo and Yushiro, who were draped in thick black cloaks, to Zero's mansion.

Also arriving together were Shinjuro Rengoku, Gyomei Himejima, and Sakonji Urokodaki.

"Everyone, no matter what happens tonight, do not take a single step away from here. I will solve Kibutsuji Muzan with my own hands."

Kanae and Mitsuri silently came before Zero, each planting a kiss on his cheek, and said in unison: "Please be careful, we will wait for your return."

Zero gave them both a reassuring look, then came before Luo Li, took her small hand, and said gently: "I leave the mansion to you."

"En, you must also be extra careful."

Planting a kiss on Luo Li's forehead, he left the mansion with Xiao Yue.

Arriving at the outskirts of the Demon Slayer Corps, Gyomei Himejima and the others had already been waiting for a long time, their eyes filled with determination.

They all carried the weapons Zero had given them previously, and through practice these past few days, they could already use them proficiently.

Subsequently, Zero looked toward the three little ones—Tanjiro and the others—as well as Genya Shinazugawa and the rest, nodding slightly.

He took the 【Dark Alloy Armored Tank】 out of the 【Nano Space】 and said: "Next, Xiao Yue will drive the vehicle to take you to Asakusa, Tokyo."

Even so, the eyes of Gyomei Himejima and the others were filled with eager fighting spirit.

Although they felt some regret at not being able to fight Kibutsuji Muzan, Kagaya Ubuyashiki had already instructed that this battle would be entirely under Zero's command.

Moreover, they trusted Zero 100%, so they had no dissatisfaction.

Immediately, Xiao Yue entered the driver's seat and started the tank.

Himejima, Tengen, Sanemi, Giyu, Kyojuro, Obanai, Muichiro, and Tanjiro entered the rear compartment of the tank one after another.

When Xiao Yue drove the tank away, Zero contacted Bai Yun through the 【Analysis Glasses】.

"Xiao Yun, proceed according to the plan."

"Understood, Brother."

Boom—!

A low engine roar came from the sky. Bai Yun calmly controlled the 【Nirvana】 to enter stealth mode, leading Number 4, Number 6, and Number 9 toward Asakusa, Tokyo, to carry out deployment preparations.

"It's just a small evil demon brat, yet you are still as cautious as before," Luo Zhan Yun appeared behind Zero at some point and said slowly.

Number 3 also appeared with him.

Hearing this, Zero waved his hand and replied: "Better safe than sorry. Who knows if that brat Muzan has any other trump cards? Besides, is everything prepared?"

"Rest assured, everything is ready."

"That's good. Next, proceed according to the plan."

"No problem!"

Now, everything was ready; only Kibutsuji Muzan descending upon the Demon Slayer Corps remained.

As for his own mansion, there was no need to worry at all.

With Luo Li there, plus Yushiro's Blood Demon Art, there was no need to worry about being discovered.

…………

Night fell.

A rustling sound came from the dark alleys of the streets, one after another.

In an instant, one could see eyeballs engraved with the character 【Four】 gushing out like a spring, one after another. The dense mass of eyeballs was hair-raising and chilling.

Inside the Infinity Castle, Nakime released eyeballs through her Blood Demon Art, transmitting all the monitored images into her mind.

"Muzan-sama, everything is ready."

"Very good. First, teleport all the demons to Asakusa, then teleport me to the Demon Slayer Corps headquarters. This time, I want to see how they resolve the trouble that follows."

"Yes, Muzan-sama."

Asakusa, Tokyo.

A strange aura permeated the place, as if countless pairs of eyes were peeping from the darkness.

Zing!

An abrupt biwa sound rang out, followed by one wooden door after another appearing out of thin air, and swarms of evil demons poured out one after another.

However, when the demons looked at the empty streets, they fell into confusion for a moment.

On the streets shrouded in night, there were no lights and no movement; it was as if it had fallen into dead silence, with no signs of life. The surrounding buildings and villas were the same.

Not even a trace of human aura could be felt, as if the people here had known the demons were coming and had run away in advance.

Bang!

Suddenly, with a deafening bang, a ball of light slowly rose, and blinding light suddenly exploded. In an instant, the entire Asakusa seemed to be shrouded in daylight!

The members of the Demon Slayer Corps, who had been waiting here for a long time, stood quietly a hundred meters away, staring at the thousands of demons before them.

The great battle was on the verge of breaking out.

…………