Kimetsu no Yaiba Wiki
Kimetsu no Yaiba Wiki

The Mu in Muichiro ( () (いち) (ろう) () Muichirō no Mu?) is the 52nd episode of the Kimetsu no Yaiba TV anime series, and the 8th episode of its third season.

Synopsis[]

With Kotetsu's help Muichiro finally manages to escape from Gyokko's Blood Demon Art, but he is close to reaching his limit with all of the damage he has sustained. As the goldfish demons draw closer to the battered Muichiro and Kotetsu, Muichiro's memories is awakened the very moment the demons attack. In this memory, he remembers his father, a lumberman, his mother, and his older twin brother, Yuichiro...[1]

Plot[]

Muichiro plucks out one of the needles

Muichiro starts plucking out the needles that are embedded in his body.

After falling out of the water pot, Muichiro begins the task of removing the needles stuck in him, but he quickly feels the severe numbness in his body caused by the needles’ poison. After removing them all, he notices the unconscious Kotetsu and the bladed fish demon about to attack him, seeing more demons join the fight. Without any strength and unable to stand, he sees the demonic spawn pounce on the young smith, and his life flashes before his eyes; he sees his father encouraging him to get up.

A young Muichiro struggles to stand with his load of lumber but finds the strength to rise up and run to his father. Owing to his work as a woodcutter, he would help his father cut down trees and enjoy doing it, seeing the smile on his face as he worked. One night, as a storm raged, his sick mother’s condition began to worsen. Muichiro tries to tell her that their father had gone out to pick medicinal herbs; feeling her high fever, he changes her wet rag and puts on another futon as comfort. She weakly mutters that she is cold, leading Muichiro to hug her and tell her that his father will come soon. Outside in the severe weather, Muichiro’s father reaches a cliff face and sees the herbs.

The Tokito Twins (Anime)

Muichiro remembers that he had a twin brother.

He struggles to reach for them, stretching his arm to take a bundle for his wife. As he inches ever closer, the rock he is standing on suddenly breaks, and he falls to his death, clutching the herbs in his hand. His mother would succumb to her illness that same night. Without both parents at the age of ten, Muichiro believed he was alone, only to recall that it was when he was eleven that he was alone; he in fact had a twin brother named Yuichiro at that time. As the two walked back home from their parents’ graves, Yuichiro began to speak of his disdain for compassion, believing that helping others is meaningless. Muichiro, hurt by his twin’s hostile remarks, speaks up and says that helping others will help themselves, as their father had said.

Muichiro upset with Yuichiro's indifference

Muichiro shocked by Yuichiro's indifference.

Hearing this, Yuichiro tells him not to believe the words of a man who died trying to save someone. Muichiro chides him for speaking ill about their father trying to help their mother, but Yuichiro states that the herbs could have never healed their condition, remarking that if he had not gone out, they would only have one dead parent. Muichiro is shocked by Yuichiro’s harsh statement, but his twin bitterly spits back that he is telling the truth, ordering him to be quiet as he might attract a boar. Yuichiro tells him the Mu in Muichiro is taken from the word for incompetence, muttering that their conversation is pointless since the past cannot change. He adds that the Mu in his name also comes from meaningless, causing his twin to cry.

Muichiro recalls that he would act like his twin whenever he lost his memories, speaking in a blunt and harsh manner. He remembers that living with Yuichiro was stifling, and he believed that his twin was a cold individual who hated him. Two seasons later, during spring, Muichiro went to fetch water by the river. Upon telling Yuichiro, he only expressed annoyance at him for not doing so already. At the river, as he filled his buckets, he was happened upon by a white-haired woman, Amane Ubuyashiki, becoming stunned by her beauty and initially believing she was a forest spirit.

Amane explains the Tokito family's ancestry

Amane tells the Tokito twins about their ancestry.

After she introduced herself as the wife of the Demon Slayer Corps’ leader, Amane stated that she had come to the mountains to make an offer. However, a hostile Yuichiro turns her away and forces her to leave. That night, Muichiro expressed to his twin his excitement when Amane told them they were descendants of the swordsmen who used the first Breathing Style. Yuichiro ignores his glee and orders him to wash some rice. Muichiro tries to tell him that they should become swordsmen after learning about demons, believing they could help people who suffer because of them.

Yuichiro chastises Muichiro

Yuichiro chastises Muichiro for his optimism.

Listening to his twin’s optimism and belief that they can help others, Yuichiro slams his knife down onto his cutting board, silencing Muichiro. Seething with anger, he furiously asks how Muichiro could even believe he could be a swordsman when he cannot even cook rice. Stating he is exactly like their father and mother, he insults Muichiro’s continual optimism, remarking how their mother had continued working and kept her condition hidden from them and how their father had gone out to get herbs in the middle of a storm.

Angrily recalling how he had told their mother to rest and how he tried to get their father to stay home, he bitterly declares that helping others is reserved for the chosen ones. Questioning what they could possibly do despite being the descendants of swordsmen, Yuichiro asks Muichiro if he truly believes they can become swordsmen, answering himself by stating that all they can and will do is die a pointless death because they have no value, just like their parents. He claims that Amane will use them for nefarious reasons and flatly declares the conversation finished before ordering him to help make dinner.

As Muichiro tears up from his twin’s verbal lashing, he recalls that they have never spoken to each other since that day, with the exception of the day they fought when Yuichiro splashed Amane when she visited them again. Since his outburst, Yuichiro has continually ignored Muichiro, even when he needed help, always having a scowl painted on his face. When a particularly hot summer came, both twins found themselves always irritable; even the nights became hot, and attempting to sleep became difficult with the heat and buzzing cicadas. One night, Muichiro moved about on his bed, unable to sleep, sweat covering his body. He got up to take a drink and saw that Yuichiro too was awake, sweaty, and unable to sleep as well.

Yuichiro protects Muichiro

Yuichiro jumps in front of Muichiro to protect him from a demon.

Without warning, a demon appeared in their home and expressed surprise that only children were at home before turning to kill Muichiro. Yuichiro leapt out of bed to jump in front of him, only for the demon to slash at him and sever his left arm, spraying the twins with blood. Muichiro quickly grabbed his agonized twin and moved him to the corner of the house as the demon became annoyed at Yuichiro’s screaming. The demon tells them that poor woodcutters are useless anyway and says that them being alive or dead doesn’t matter, stating that their lives are worthless.

The aftermath of Muichiro's tussle with the demon

Muichiro viciously defeats the demon in a fit of intense rage.

Muichiro, upon hearing the demon’s insults, suddenly lost himself in an incredibly violent rage that he had never experienced before, remarking that even recalling it now, he could not believe it happened and stating that he could not remember anything when it happened. One moment, Muichiro saw himself screaming a vicious roar from his throat, and in the next, he saw the demon brutally butchered with several gardening tools and pinned with wooden stakes and stones.

The demon, despite his wounds, continued to twitch in agony as he could not die. Shortly after this, sunlight shone on his body, causing him to finally burn into ash and perish. After watching it die, Muichiro dropped his weapons and began to walk back home, only to suddenly collapse just a short walk away from the front door. Desperately wanting to reach his brother, he struggled to crawl the remaining distance.

Muichiro reaches out for his dying brother

Muichiro reaches out for his dying brother.

After finally making it home, he saw that his twin was barely clinging to life and made his way to him. He saw that Yuichiro was praying to the gods to save his brother because “He’s not like me. He’s a kind-hearted kid. He says he wants to help others... but I got in his way." Denouncing himself as the only one to blame, he prays for only himself to be punished instead, and he finally recalls where the Mu in Muichiro's name came from as his twin began to cry and hold his bloodied hand.

Muichiro awakens his Mark

Mysterious red markings appear on Muichiro's face.

Recalling Yuichiro’s statement that the Mu in Muichiro comes from "infinity," Muichiro rises up; his cheeks become marked with three red cloud-like patterns as he grabs his blade and uses Mist Breathing, Fourth Form: Shifting Flow Slash, grabbing Kotetsu, and eviscerating the fish demons instantly. Checking on Kotetsu, the young swordsmith tells him to not pay him heed and instead move to help Hotaru and protect the swords, to which the Hashira obliges.

Gyokko, now entirely livid, watches as Hotaru continues to polish his blade and ignore him, despite now sustaining numerous slashes throughout his body and a lost eye. When he notices the heavily injured Kozo nearby, he decides that killing him should finally get a reaction out of Hotaru.

Muichiro with his Demon Slayer Mark

Muichiro arrives to face Gyokko.

Suddenly, he senses a blade approaching him and ducks down in the nick of time to avoid Muichiro’s slash. Seeing the Hashira, he becomes confused at how he managed to escape his Water Prison Pot, thinking that since he believed he would die, he did not focus on him, though the demon instead interprets it as credence to his deep concentration. He looks closely and sees the marks on his face, realizing from the information given by Muzan that they are the same as on "that child with the earrings." Most confusing for Gyokko is how Muichiro appears so nonchalantly when he is supposed to be paralyzed and how he has managed to land a slash on his shoulder.

As the Mist Hashira attacks, Gyokko points a vase at him and unleashes his Blood Demon Art, Octopus Vase Hell; enormous tentacles emerge from his vase to grab him and Kozo, snapping his blade and destroying the work shed. Gyokko wonders what Muichiro now thinks of his new elastic tentacles since they cannot be slashed. Having been knocked outside, Hotaru grabs his polishing stone, kneels down, and continues his work, which is noticed by the annoyed Upper Rank. Deciding he will kill and absorb the Hashira first, he is shocked to watch the tentacles grabbing Muichiro and Kozo suddenly fall apart.

Muichiro thanking Kanamori for his new blade

"Thank you, Mr. Kanamori"

Now with his own completed blade, Muichiro thanks the swordsmith, though Kozo mentions he had only made it based on the instructions of his first swordsmith, Tetsuido. As he wields his new blade, he is pleased to feel that its balance suits him perfectly. He recalls a time when he had spoken to Tetsuido, who expressed concern that nobody could understand him, whether it is the pressures he faces, his inability to remember things, or his strive to push himself, before mentioning that he tears up when he uses the blade made for him. Stating that he is old enough to not worry about death, he instead cannot seem to stop worrying about him.

Muichiro uses Sea of Clouds and Haze to slice up Gyokko's tentacles

Mist Breathing, Fifth Form: Sea of Clouds and Haze.

As Gyokko prepares his Octopus Vase Hell and Muichiro takes a stance, he apologizes to Tetsuido for causing him to worry, but as of now, he is alright. Watching the tentacles approaching him and empowered by his marks, the Hashira blitzes forward and uses Mist Breathing, Fifth Form: Sea of Clouds and Haze, slicing through them all with incredible speed and aiming a slash at Gyokko’s neck. The demon quickly ducks down and appears out of a new vase on top of a tree, complimenting his new speed but mentioning that he is still too slow to match how quickly he can move between vases.

Unexpectedly, Muichiro asks if he believes it to be so and wonders if his senses have dulled from his age; initially confused, Upper Five becomes stunned to feel a slash on his neck. The Mist Hashira promises to slash him properly the next time, but Gyokko claims the boy shouldn’t underestimate him. He vanishes from view and appears behind Muichiro, pointing his vases to launch a volley of high-speed water jets. Muichiro expertly weaves his way through the forest to avoid them and watches as more of Gyokko's goldfish demons appear and spray hundreds of poisonous needles at him. As he evades Upper Five's incessant attacks, Muichiro recalls Yuichiro's final apology just before his death:

Muichiro slashing through Gyokko's defense

"You are one of the chosen ones!"

"Muichiro. Sorry I couldn't be more gentle with you. I could just never afford to be that way. Being kind to others is one more thing that only the chosen ones can do. But Muichiro, no matter how virtuous a life you may lead, neither the gods nor Buddha will protect you in the end. That's why I thought I had to protect you. Muichiro. You're not like me. For the sake of someone other than yourself, you can exert infinite strength. You're one of the chosen ones!"

As the demon unleashes his octopus tentacles to grab Muichiro, the Mist Hashira leaps up and evades them all with ease, before he slashes the vases right out of Gyokko's hands and stares at his opponent's next move, enraging the Upper Rank.

Characters in Order of Appearance[]

Anime Notes[]

  • The episode is named after Chapter 118.
  • The first eyecatcher is a recreation of Volume 14's title page. The second eyecatcher is a loose recreation of Chapter 108's cover.
  • Much of Chapter 118 and 119 has been re-ordered and greatly extended in the anime:
  • In the manga, after freeing himself from the water pot, Muichiro suddenly thinks about past advice from Kagaya Ubuyashiki, leading him to remember his advancing illness. This is not shown in the anime.
  • In the manga, despite being weak from his prolonged suffocation, Muichiro kills the fish demon as it tries to attack him and Kotetsu. In the anime, instead of one, there are five, and instead of attacking him, they all pounce on the unconscious Kotetsu.
  • In the manga, he remembers his mother's illness and eventual death, as well as his father's death attempting to pick herbs immediately after freeing himself. In the anime, he instead is too weak to save Kotetsu, causing him to remember his father. In an anime-only scene, a young Muichiro is shown helping his father with collecting wood, before transitioning to him helping his sick mother in her final moments. Muichiro's father is also shown attempting to reach for the herbs before losing his footing and falling to his death.
  • In the manga, when Muichiro recalls having a twin, it occurs right after Kotetsu tells him to ignore his condition and move to help Hotaru. In the anime, his recollection occurs after the scene depicting his parents' deaths and Kotetsu's request is instead shown later on after being saved from the fish demons.
  • When Amane visits the twins in the manga, she arrives at their residence after Muichiro had finished collecting water, whereas in the anime, he is shown heading to the river to fill his buckets when he sees her on the other side. Yuichiro is also seen visibly annoyed at her visit and unceremoniously slamming the door as she leaves. He is also shown later splashing Amane with water to make her leave for good.
  • In the anime, when the demon appears at their home, Muichiro is shown beforehand moving about in bed unable to sleep before getting up to get a drink.
  • In the anime, when Yuichiro reveals the origin of the Mu in Muichiro's name and the marks appear on his face, he gains the strength to kill the fish demons and save Kotetsu. He is also seen using the fourth form of Mist Breathing.
  • In the manga, before transitioning to his confrontation with Gyokko, a monologue during the scene where the marks appear on his face shows Yuichiro telling Muichiro he can tap into limitless strength to save others, before revealing he had only wanted to protect him since he did not believe the gods and Buddha would and apologizing for his harsh treatment of him. In the anime, his monologue is recalled later on whilst Muichiro is evading Gyokko's attacks and the order of his statements is reversed.
  • In an anime-only scene, after Gyokko tells Muichiro not to underestimate him, he appears behind the Hashira to attack him using vases firing jets of water, five Blood Demon Art goldfish using Thousand Needle Fish Kill, and Octopus Vase Hell one after another. Muichiro is also seen attacking Gyokko directly to slash the vases out of his hands and stop his attacks.

References[]

Navigation[]

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Season 1
Episodes: 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 · 21 · 22 · 23 · 24 · 25 · 26
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Season 2
Episodes: 27 · 28 · 29 · 30 · 31 · 32 · 33 · 34 · 35 · 36 · 37 · 38 · 39 · 40 · 41 · 42 · 43 · 44
BD&DVD: Mugen Train Vol.1 · Mugen Train Vol.2 · Entertainment District Vol.1 · Entertainment District Vol.2 · Entertainment District Vol.3 · Entertainment District Vol.4 · Entertainment District Vol.5 · Entertainment District Vol.6
Season 3
Episodes: 45 · 46 · 47 · 48 · 49 · 50 · 51 · 52 · 53 · 54 · 55
BD&DVD: Swordsmith Village Vol.1 · Swordsmith Village Vol.2 · Swordsmith Village Vol.3 · Swordsmith Village Vol.4 · Swordsmith Village Vol.5 · Swordsmith Village Vol.6 · Kimetsu no Utage (Swordsmith Village)
Other: Rebroadcast Night 1 · Rebroadcast Night 2
Season 4
Episodes: 56 · 57 · 58 · 59 · 60 · 61 · 62 · 63
BD&DVD: Hashira Training Vol.1 · Hashira Training Vol.2 · Hashira Training Vol.3 · Hashira Training Vol.4
Movies
Movies: Sibling's Bond · Mugen Train (BD&DVD) · To the Swordsmith Village · To the Hashira Training · Infinity Castle Trilogy
Theatrical Shorts: Mitsuri's Uniform
Music
OP: Gurenge · Akeboshi · Zankyosanka · Kizuna no Kiseki · Mugen
ED: From the Edge · Shirogane · Asa ga Kuru · Koi Kogare · Tokoshie
Movie Songs: Homura · A World Where the Sun Never Rises · Shine in the Cruel Night
Insert Songs: Kamado Tanjiro no Uta · Kamado Nezuko no Uta
OST: Limited Edition OST Vol. 1 · Unwavering Resolve OST · Mugen Train OST · Entertainment District OST · Swordsmith Village OST
Spin-Offs
Mini series: Junior High and High School!! Kimetsu Academy Story
Books
Character Books: Volume 1 · Volume 2 · Volume 3 · Volume 4 · Volume 5
Illustration Books: Book 1 · Book 2 · Book 3
Staff Books: Unwavering Resolve Arc · Mugen Train Arc · Entertainment District Arc · Swordsmith Village Arc · Hashira Training Arc
Setting Books: Main Characters · Unwavering Resolve Characters · Unwavering Resolve Art · Mugen Train Characters · Mugen Train Art · Entertainment District Characters · Entertainment District Art · Swordsmith Village Characters · Swordsmith Village Art