"Rui, was it your saying you will take my little sister as some kind of slave? You got a lot of guts for uttering these words. I give you that." Tanjiro and Nezuko were visually relaxed after hearing his big brother's words after seeing his silhouette.
Rui, who is little shaken, asks, "Who are you? What's your relationship with them?"
"I am there, big brother, and you shouldn't hurt my little siblings, so grit your teeth hard otherwise."I vanished from his vision and appeared in front of him with a punch to his face, causing him to launch like a rocket to nearby trees, breaking two trees. When he got up, he spit out his teeth and regenerated.
Rui How can a human be so fast and his punch hurt so much? His fists are like hammers. "Oye, what are you dreaming?" A kick connected to his stomach caused Rui to fly like a broken kite and hit another tree before he knew it. He was above him, launching himself to Rui, which he barely dodged, causing cracks on the ground.
"Good you are able to dodge, then you can take a beating sincerly.". Raja decided to first beat the shit out of the demon and after that give him a mercy kill with a sword, but he can react with his speed, which means he is a lowermoon.
Rui uses his spider silk to avoid the blows and defend himself, but the force from the punch and kick causes him to fall and get beaten.
Raja decided to end this little fucker. He pulled his sword, causing the demon to be vigilant. He used his Blood Demon Art: Cutting Thread Cage to shred him into pieces, but Raja uses Water Breathing, Tenth Form: Constant Flux, and is able to slice through the threads, giving him the motivation to defeat the demon.
Lower Five draws a web in his hands and uses Blood Demon Art: Murderous Eye Basket. Blood threads begin to encircle Raja, but he uses Third Form: Flowing dance and cutting all the lines and reaching Rui.
Rui angrily denounces the Demon Slayers as "an endless stream of lowlifes always getting in my way." Using Blood Demon Art: Cutting Thread Rotation, he forms a spinning web of blood threads and launches it at his attacker.
Raja, with calm expression, uses water breathing, tenth form: constant flow. The user charges toward the target whilst performing a continuous flowing attack with their blade, which increases in strength and speed over time using momentum. The attacks seemingly take the form of a Japanese water dragon that accompanies the user in battle. It caused him to reach Rui, and with a single strike, First Form: Water Surface Slash decapitated Rui.
As Tanjiro makes his way to Nezuko, Rui's severed head falls, still wanting to kill the siblings. Internally, he sees Mother asking what his intentions are with his "family." He states that he isn't sure but that he has no human memories. Mother asks if that is why he made them pretend to be his. Rui believed he could regain them if he felt a familial bond. He sees Tanjiro hugging Nezuko and realizes he did everything to get what they have.
Raja reached the siblings and hugged them and said sorry for being late. They smiled, and Tanjiro took the injection Tomayo gave him for the blood of a demon, and a cat phantom appeared and took it and vanished.
As Tanjiro watches Rui's body fade away completely, he is shocked to see Giyu stepping on his clothes. The Hashira scolds him for showing sympathy to a demon, telling him it is irrelevant because it looks like a child, as it is a hideous monster that has lived for decades. Tanjiro responds that to avenge those killed by demons and prevent more victims, he will kill without mercy, but to demons who despaired and regretted their actions, he would never trample on them because they were humans too, begging Giyu to step off Rui's clothes. He claims that demons are not hideous monsters but tragic and hopeless creatures. As Giyu looks at him and sees Nezuko as well, he suddenly remembers the two from their encounter years ago.
At that moment, butterflies surround Giyu, though he quickly understands the situation and lowers his stance. From the trees, Shinobu speeds in and attempts to kill Nezuko; Giyu quickly blocks her blade, and she becomes confused. She asks why he interrupted her attack after stating that demons and humans could never get along, further stating that his actions are why he is disliked.
"Oye, I just killed a lower-five for hurting my siblings. Do you have a death wish? Do you dare to talk about their murder in front of me?" Raja realized his killing intent, causing Shinobu and Giyu to become alert and ready to strike.
Garuda "No harm should come to kamado sibilings; it is the oder of Ubuyashiki-sama." This caused the tension to lift. Raja told Tanjiro to rest; they will talk later.
while Tanjiro is found by Kakushi, according to his description from the crow.
Another pair of Kakushi find Inosuke still tied to the tree but are wary after seeing his boar mask. They eventually discover he is indeed a Demon Slayer and take him down, shocked at the extent of his injuries. As he is taken, Inosuke laments his inability to kill even a single demon and begins to doubt himself. Elsewhere, Zenitsu, with Chuntaro as company, is put alongside the other treated Demon Slayers. He wonders about the Kakushi and notes their speed and efficiency. He sees the girl giving orders and recognizes her as a survivor of Final Selection. The girl tells the Kakushi to bring the wounded to her place, the so-called Butterfly Mansion, while she hunts demons around the forest to protect them.
Zenitsu then remembers who the Kakushi are: they serve as clean-up crews after battles with demons and are composed of people without skills in swordsmanship. Dawn breaks over Mount Natagumo as everyone leaves the forest; Tanjiro is now asleep on a Kakushi's back. Sometime later, Tanjiro, still sleeping, lies in a grind garden when the Kakushi commands him to wake up. He jolts awake and finds himself before several swordsmen, with the Kakushi telling him he is in the presence of the Hashira.