With a reputation of 70,000, one leader travels across countless worlds with his adventure team.

Inside the Infinity Castle, Muzan watched as the body he had infused with new blood slowly dissipated, knowing that Upper Moon Two, Doma, was beyond saving. Enraged, Muzan conjured a giant arm of flesh and blood, which smashed Doma's headless body and the room beneath him to pieces.

Nakime, who was kneeling on the floor of the next room, was so frightened that her hands holding the koto were trembling. Muzan had summoned all the Upper Moons for a meeting when Upper Moon Three, Akaza, was killed.

The sudden appearance of a white-haired, red-eyed swordsman, a swordsman who could use the Sun Breathing technique, and the Demon Slayer Corps' sudden overall increase in strength all enraged Muzan.

Especially Bai Ze, when he launched an attack in the battle against the demons, he was more like a demon than the demons under Muzan's command, and he was a demon whose strength was comparable to his own!

First it was Upper Moon Three Akaza, then Upper Moon Six siblings, and now it's Upper Moon Two Doma. Muzan's high-end fighting force is being dismantled by the Demon Slayer Corps bit by bit.

In the memories of the dead demons, Muzan also noticed the unusual nature of the swords in the hands of the Demon Slayer Corps swordsmen and the unusual strength of the swordsmen recently, and probably guessed that these were all brought about by Hakutaku.

This series of events disrupted Muzan's search for the "Blue Spider Lily" and caused him to lose four of his top-tier fighters in a short period of time, which was unacceptable to Muzan.

However, given the current strength of the Demon Slayer Corps, Muzan himself cannot eliminate them all at once. If he doesn't choose the right opponents and can't finish them off in one night, and his pace is slowed down, it won't be good for Muzan.

This greatly angered Muzan, who had long since delegated the task of eliminating the Demon Slayer Corps to his subordinates.

Muzan closed his eyes and began to contact Upper Moon Five, Gyokko, and Upper Moon Four, Hantengu;

Previously, Upper Moon Five, Gyokko, mentioned that he had discovered a location that appeared to be a village of swordsmiths belonging to the Demon Slayer Corps. If he could kill all those swordsmiths, depriving the current Demon Slayer Corps of weapons to fight demons, it would be a good thing.

"Jade pot!"

While heading towards the swordsmith village in the mountains, Gyokko and Upper Moon Four, Hantengu, suddenly sensed a connection with Muzan.

"Lord Muzan... I'm here..."

"Find the swordsmith village quickly and kill all the swordsmiths there. I want you to leave not a single one alive!"

"Yes... Lord Muzan..."

Upper Moon Four: Hantengu's humble true form, "Timid," was extremely terrified of Muzan. Just hearing Muzan's voice made him cower in fear, unable to speak properly.

 …

On the battlefield of Doma, Hakutaku and Shinobu Kocho watched Doma's dissipating head. Both of them knew that it was Kanae Kocho who had intervened to preserve Doma's soul, preventing Doma from having a chance to revive from his body.

Shinobu Kocho saw her sister one last time and watched her enemy vanish before her eyes. The emotions she had hidden for many years burst forth in an instant.

"Waaah... Waaah... Ahh, waaah... Sister!"

Dropping the knife in her hand, Shinobu Kocho knelt on the ground, venting her emotions in anguish. Hakutaku stepped forward, knelt on one knee, and hugged Shinobu. Shinobu did not reject Hakutaku anymore, rushed into his arms, pressed her head against his chest, and cried silently.

Bai Ze patted Shinobu Kocho's back, feeling her large size, and thought to himself, "That lecherous old man who makes the Demon Slayer Corps uniforms was right after all. There's a reason why he made such revealing uniforms for Shinobu and Mitsuri."

After crying her fill, Shinobu looked up at Hakutaku. Hakutaku looked down at Shinobu, whose eyes were still blurry with tears, swallowed hard, and said:

"Your sister asked me to take care of you from now on, so you can't go back on your word!"

Shinobu Kocho, seeing the serious look in Hakutaku's eyes, said:

"That's what my sister said, I didn't..."

Bai Ze immediately lowered his head to seal her mouth. Shinobu Kocho's eyes widened from Bai Ze's swift attack, but her body, which was half-kneeling and being held tightly by Bai Ze, could not exert any strength. She could only slowly close her eyes and feel Bai Ze's attack.

Having savored the unique floral fragrance, Bai Ze raised his head and said:

"What did you just say? I didn't hear you clearly~"

"Oh my gosh~ Lord Bai Ze has this trick up his sleeve, who would have thought..."

Seeing that Shinobu Kocho was about to turn into a venomous snake again, Hakutaku didn't hesitate and launched a second attack!

"Have you figured it out yet?!"

"I've thought of something... Goodbye... Don't come again..."

Seeing the gentler Shinobu Kocho, Hakutaku stood up with a grin, holding her in his arms. Just then, Raphael spoke up from nearby:

"Oh my gosh~ it seems like we'll be welcoming a new family member soon!"

Shinobu Kocho then remembered that there was someone else besides Hakutaku, and her face and neck immediately turned red. She covered her face with her hands and buried herself in Hakutaku's arms.

Bai Ze looked at Raphael with a grin and even gave Raphael an innocent wink.

Raphael rolled his eyes, stepped forward and poked Bai Ze's forehead, then pulled Bai Ze's ear and whispered to him:

"Don't forget, Aying is still waiting for you at home. That girl isn't good at expressing her feelings, but didn't you notice that she's always around you, following you wherever you are?"

Bai Ze naturally knew A Ying's thoughts. All the companions in his adventure team were left to him by the system, and everyone's feelings were tied to Bai Ze, so Bai Ze would not abandon any of them.

The ordinary and hidden members of the Demon Slayer Corps, who had already received Hakutaku's message, were already waiting around. The civilians who had run away from the Doma base were all taken to a safe place by the team members.

Seeing that the battle was over and the two pillars were still standing in the arena, they naturally understood that the demon had been eliminated by the "Mad Pillar" and the "Insect Pillar". The team members quickly went forward to check the situation.

Bai Ze told the team members about the demons he and Shinobu had slain:

Upper Moon Two, Doma, has been confirmed dead!

Upon hearing that the Demon of Death was another Upper Moon, the team members excitedly raised their hands and cheered.

Shinobu Kocho, who had been in Bai Ze's arms, finally calmed down from her embarrassment and indignation. She left Bai Ze's embrace, picked up her sword, and smiled as she looked at her cheering teammates.

When daylight arrived, Hakutaku used Kasugai-raven to deliver the good news of defeating Upper Moon Two, Doma, to the lord's residence and the locations of each pillar.

 …

At this moment, in the Swordsmith Village, the Love Pillar Mitsuri Kanroji, the Serpent Pillar Obanai Iguro, and the Mist Pillar Muichiro Tokito took turns coming here to enchant their swords with small crystals.

The Mist Hashira, Muichiro Tokito, chose a small blue crystal enchantment that was beneficial to his breathing technique;

Love Pillar Mitsuri Kanroji chose the White Small Crystal Enchantment;

Obanai Iguro, the Serpent Pillar, is one of only two Pillars to choose the black crystal, just like Shinobu Kocho.

Just as the three were waiting for their new swords, the three little ones finished their side mission and were also assigned to upgrade and enchant their swords.

Unintentionally, the swordsmen of the Swordsmith Village arc had all gathered. At this time, Hakuzawa had just finished fighting Doma with Shinobu Kocho, but unexpectedly, something was about to happen in the Swordsmith Village.

Meanwhile, in the swordsmith village, Kanroji Mitsuri happily started a banquet with Obanai, Muichiro, and the three little ones, while Nezuko played around in her loli form.

Tanjiro watched as Mitsuri teased Nezuko, happily enjoying the rare treat on the table, while Inosuke devoured the food with gusto.

That evening, the group soaked in a hot spring. Back in their room, Tanjiro braided Nezuko's hair into a three-strand braid just like Mitsuri's, and Nezuko happily hummed in agreement.

Not far from the window, on a small path, the swordsmith, who had just finished his shift, had soaked in the hot spring and enjoyed a long-awaited drink. He then swayed and walked towards his residence.

As he passed the path back, a pot placed in the middle of the road caught the knifemaker's eye;

"Huh? A pot? Where did it come from? Was this thing here when we came up?"

The knifemaker stepped forward to examine the pot placed in the middle of the road, and reached out to take it away, when suddenly...

A ghostly hand reached out from the pot, grabbed the swordsmith, and instantly pulled him into the pot. A sound of flesh being twisted echoed, and the pot swayed in place...

"Ok!"

Mitsuri and Tanjiro, who were not fully rested in the room, both sensed the presence of demons. Tanjiro even smelled more than one demonic scent. He quickly woke up the two little ones who were resting in the next room.

Just as Tanjiro was calling for help, Mitsuri also came out of her room and woke up Obanai and Muichiro next door;

Mitsuri hurriedly led Obanai and Muichiro to their swordsmith, because the swords they were currently using were training swords made by the swordsmith, which wouldn't be able to perform perfectly in a battle against demons.

Just as the three were walking outside, Miri sensed something unusual on the roof. Looking up, she saw a small, thin figure lying on the roof with a tumor on its forehead and two horns growing from its head.

Muichiro instantly leaped onto the roof and drew his sword to strike;

"Breath of Mist - Fourth Form: Horizontal Slash"

The Upper Moon Four, Hantengu's true form, "Kei," which was lying on the rooftop, was split in two from the head by Muichiro.

One half of the demon's body, now split in two, fell down towards Mitsuri and Obanai, while the lower half remained on the roof.

While the group was still in a daze, both sides of the ghost that had been split in two began to change, growing larger and revealing two bodies the size of adults.

Mitsuri opened her eyes wide and said:

"It's split up!"

On the rooftop, Muichiro continued slashing at his clone beside him;

"Breath of the Mist - Second Form: Yae Mist"

The clone of "Raku" that split off from the rooftop is "Cola," who uses a maple leaf fan to attack. Half of its head has already appeared. It looks in Muichiro's direction with its left eye and then blows the fan towards Muichiro.

Muichiro reacted the moment 'Cola' raised his arm, instantly changing his breathing technique to unleash his attack:

"Breath of the Mist - Form Three: Scattered Mist and Drizzling Foam"

The high-speed spinning slash guided the strong wind fanned by 'Cola' to change direction, and Muichiro lowered his body and slashed at 'Cola' again with "Fourth Form: Horizontal Slash";

On the side of the landed head, starting from the head, the "Rage" clone "Accumulated Rage" flipped and landed, revealing its full body. Snake Pillar Obanai and Love Pillar Mitsuri drew their swords and rushed forward. "Accumulated Rage," with its back to the two, slammed its staff into the ground.

Lightning struck Obanai and Mitsuri head-on, but Mitsuri didn't stop charging forward, swinging her weapon.

"Breath of Love - Second Form: Regretful and Hesitant Love"

As the sword was swung, the lightning was channeled into the sword in her hand, and with her final downward strike, Mitsuri sent the lightning into the ground.

"Serpent's Breath - Third Form: Nest Sting"

With no obstruction in front of Obanai, he unleashed the Serpent Breath technique, aiming to coil towards 'Accumulated Wrath'.

Mitsuri watched as two people and two demons began fighting ahead, then turned to Tanjiro, who was about to draw his sword and rush forward, and asked:

"Tanjiro, is that the demon you're smelling?"

Tanjiro was taken aback for a moment, then calmed himself down, stood still, took another deep breath, and opened his eyes to say to Mitsuri:

"Not this one, the first one I smelled had the scent of water."

Mitsuri nodded and said:

"Then leave this to us. The three of you take Nezuko and find that demon. You must protect all the masters in the swordsmith village!"

"Yes! I understand."

"I'm going to find him and chop him to pieces!"

"Ah~ there's another demon? Are they all... Upper Moon demons?"

The pig was very excited, and Zenitsu's legs were a little weak. Now everyone could see the words "Upper Moon - Fourth" clearly in the eye. Tanjiro smelled that it wasn't this one, so there was probably another Upper Moon as well.

The two little ones, along with Nezuko, turned and followed Tanjiro into the forest. Tanjiro could roughly pinpoint the direction from which the demon's scent was coming from.