In short
Muichiro Tokito lost his memory because of the shock of the night a demon attacked the twins’ house. His brother Yuichiro lost an arm there, then his life, and Muichiro, the only survivor, forgot almost everything that came before. It is neither a technique nor a curse: it is trauma. The memories come back in the Swordsmith Village, thanks to Tanjiro and little Kotetsu.
Contents
In Demon Slayer, Muichiro Tokito stares into space, forgets names and answers beside the point. At fourteen, he is nonetheless the youngest of the Hashira, made Mist Hashira only two months after picking up a sword. His absent air is no character trait: he really did lose his memories.
This article goes over the Tokito twins’ childhood, the night that erased everything, what the amnesia changes in the way he is, and how his memory comes back to him. Our page on the Hashira of Demon Slayer places him among the nine Hashira.
What Muichiro forgot
| What fades | What remains |
|---|---|
| His parents | no memory, he does not know how they died |
| His twin brother | a vague sense of something missing, with no face or name |
| The night of the attack | nothing, not even how he survived |
| Everyday life | he forgets the faces and names he has just been told |
| His sword | intact: his technique never faded |
Muichiro’s amnesia does not touch everything. He knows how to fight, he masters Mist Breathing, he understands orders. What disappears are the bonds: his family, his past, and even the people he meets from day to day.
That is what gives the character the drifting air Demon Slayer fans know him for. He watches the clouds, forgets Tanjiro from one scene to the next, and speaks to others with a bluntness that passes for indifference.
A shonen series rarely gives such a powerful character such an intimate flaw. Muichiro holds his rank as a Hashira while not knowing who he is.
A memory in the mist
The name of his breathing style is no coincidence. Muichiro fights in the mist and lives in it, surrounded by a fog that hides his own past.
Two twins in the mountains
Muichiro and Yuichiro are born into a family of woodcutters, deep in the mountains. They have the same long hair, black with turquoise tips, and the same face. Their life is simple, paced by the wood to cut and the seasons. Demon Slayer only shows this childhood in memories, at the very moment Muichiro’s memory comes back to him.
Everything changes the year they turn ten. Their mother catches a cold that worsens and takes her. Their father, who went out in a storm to find medicinal plants for her, falls from a cliff. The two boys are left alone.
Yuichiro then changes his tone. He becomes hard, curt, and keeps telling his brother that kindness is useless. He tells him that the “mu” in Muichiro is the “mu” of “useless”, of “nothing”. Our article on Yuichiro Tokito, Muichiro’s twin tells of this brother who hid his fear behind his anger.
Their father had left them another lesson, though: what you do for others always comes back in the end. Muichiro will forget it, and it is what will bring him back to himself years later.
A brother too harsh
Yuichiro does not hate his brother. He watched his parents die for giving too much, and he wants to stop Muichiro from going the same way.
Amane’s visit
One day, a woman comes knocking at their door. It is Amane, the wife of the head of the demon slayers, Kagaya Ubuyashiki. She explains to the twins that they descend from a swordsman who mastered the first of the breathing styles, and offers them a place in the Corps.
Muichiro is tempted. Yuichiro flatly refuses, chases her off and throws water at her. To him, this offer is just another way of dying for others, like their parents. Our article on Kagaya Ubuyashiki, the head of the demon slayers presents the couple who took in so many orphans.
Amane comes back several times all the same, without losing heart. The twins do not yet know that their ancestor is Michikatsu Tsugikuni, who has since become Kokushibo, Upper Moon One.
A line of swordsmen
The Tokitos descend from Yoriichi’s older brother. Muichiro’s talent for the sword comes from this line, as does the demon he will face at the end.
This boy in uniform, sword outstretched in a swirl of turquoise mist, is found in the Hashira figures collection.
Muichiro 25 cm figure
25 cm figure, Muichiro caught in full motion in the middle of a turquoise mist.
View the product · €119.90The night Yuichiro died
The following summer, it is so hot that the twins leave the door open to sleep. A demon comes in. It tears off Yuichiro’s arm and mocks the two boys, whom it considers useless and whose disappearance nobody will notice.
Muichiro then flies into a rage he did not know he had in him. With no sword and no training, he strikes the demon, pins it down and holds it until sunrise, which reduces it to ashes. Then he crawls to his brother.
Yuichiro is dying. In his last moments, he prays to the gods and the buddhas to spare his twin, the only one who deserves to live in his eyes. He finally says what he really thought: the “mu” in Muichiro is the “mu” of mugen, infinity, because his brother can do an infinite number of things for others.
Muichiro stays by the body, unable to move, while his own wounds become infected. It is Amane who finds him and nurses him, between life and death.
The words that mattered
Yuichiro’s last sentence erases all the others. He did not think his brother useless; he only wanted him to live.
Why the amnesia?
The story speaks of no spell and no demon power. The shock of that night, his brother’s death before his eyes and the fever that follows are enough to erase everything. Muichiro wakes up with no memory of his past.
The series shows it as a protection as much as a loss. Without memory, Muichiro no longer carries the grief for his family. All he has left is a dull anger against demons, and the will to kill them.
Kagaya, who takes him in afterwards, promises him that his memories will come back. He explains that they are sleeping inside him, and that a trigger will be enough to wake them. Muichiro believes him without trying to bring it about.
This device is rare in Demon Slayer. Most characters carry their memories like a burden, from Tanjiro to Sanemi, and use them to move forward. Muichiro is the only one the series strips of his, before giving it back when he needs it most.
The amnesia also explains his coldness towards Tanjiro at their first meeting. He looks down on no one: he has simply lost the habit of growing attached. Our article on Muichiro Tokito, the Mist Hashira traces his career as a demon slayer.
A forgetting that protects
Muichiro did not choose to forget, but forgetting lets him survive. He keeps the strength to fight without the weight of what he lost.
A Hashira in two months
Once he recovers, Muichiro joins the demon slayers. His talent is such that he becomes a Hashira two months after holding a sword for the first time, faster than all the other Hashira.
He masters Mist Breathing, a variant of Wind Breathing made of elusive movements that blur the opponent’s vision. He later adds a seventh form of his own invention, which belongs to him alone. Our article on Mist Breathing details its forms.
In Demon Slayer, other Hashira took years to climb the ranks. This talent is not only the fruit of his lineage. Muichiro trains relentlessly, and his amnesia makes him immune to distractions. He thinks only of what he is doing in the moment.
His place among the Hashira still brings him a few clashes. He ignores customs, forgets faces and speaks bluntly, which irritates more than one demon slayer in Demon Slayer.
The youngest of the Hashira
At fourteen, Muichiro sits among the strongest in the Corps. He got there faster than anyone else, without even remembering his reason to fight.
The Mist Hashira, standing with his faraway look, also exists as a plush, to be found among the shop’s plushes.
Muichiro Tokito plush
26 cm plush, Muichiro standing in his uniform, with his distracted look.
View the product · €29.90The memories return in the village
In the Swordsmith Village, Muichiro meets Kotetsu, a young masked swordsmith who watches over a training puppet. At first, he treats him roughly. Then he crosses paths with Tanjiro, who repeats to him the lesson their father had left them: what you do for others comes back in the end.
Tanjiro’s words echo his father’s. When the demons attack the village, Muichiro chooses to save Kotetsu instead of rushing into the fight. This act, prompted by the kindness Yuichiro wanted to stifle, opens a crack.
Trapped in a bubble of water by Gyokko, Upper Moon Five, he almost drowns. As he suffocates, the memories surge back all at once: his parents, the mountain, the night of the attack, Yuichiro. Our article on the Swordsmith Village arc comes back to this passage.
Freed, Muichiro comes out of the bubble with a cloud-shaped Mark on his face. He kills Gyokko soon after, without a glance at his taunts.
The awaited trigger
Kagaya was right: a trigger was all it took. A child’s words and the fear of losing a friend give Muichiro back his whole past.
What memory changes
After the village, Muichiro is no longer the same. He smiles, thanks people, worries about Tanjiro and his friends. The mist has lifted, and the boy his father wanted to see grow up reappears.
The Mark, though, has a price. Like all demon slayers who develop it, he knows he will probably not live past twenty-five. Our article on the Demon Slayer Mark explains this rule.
During the Hashira Training, this new Muichiro is attentive to the other demon slayers, helping them improve instead of ignoring them. Demon Slayer fans often point out this contrast with his first scenes.
A different boy
Getting his memories back gives Muichiro back his grief, but also his gentleness. He becomes once more the brother Yuichiro wanted to protect.
Muichiro’s sword can even be built piece by piece, in the LEGO sets collection.
Muichiro LEGO katana 101 cm
101 cm katana to assemble, guard and blade of the Mist Hashira, with its stand.
View the product · €119.90Facing Kokushibo, his ancestor
In the Infinity Castle, Muichiro faces Kokushibo, who recognises in him a descendant of his own children. The demon offers to make him an Upper Moon in turn. Muichiro refuses and fights alongside Genya, Gyomei and Sanemi.
He loses his life there. But he does not die forgetting: he knows who he is, where he comes from, and why he fights. Our article on why Kokushibo has six eyes tells of this demon who was his ancestor.
In the afterlife, Yuichiro is waiting for him. He scolds him for dying so young; Muichiro answers that he regrets nothing. The two brothers are finally reunited, with all their memories. The series closes the twins’ story this way, and our page on all the characters of Demon Slayer presents the other members of this line.
Leaving with his memories
Muichiro had forgotten everything to survive. He dies knowing everything, and that is what lets him find his brother in peace.
Wearing the Mist Hashira
Muichiro is recognisable by his long black hair with turquoise tips, his uniform with oversized sleeves and his gaze turned towards the clouds. These details are enough for a successful cosplay.
As a gift, the serenity he regains after the Swordsmith Village appeals as much as his distracted air at the start. Fans often pick one period or the other, depending on the side of him they prefer.
Demon Slayer fans also like to recreate him with his brother: the Tokito twins lend themselves perfectly to a duo cosplay, with two identical wigs with turquoise tips, a demon slayer uniform for Muichiro and a simple woodcutter’s kimono for Yuichiro.
You will find all his products in the collection dedicated to Muichiro Tokito, and the techniques of his school on our page on the breathing styles of Demon Slayer.
A Hashira apart
Muichiro is the only Hashira whose whole story fits into a memory lost and then found again. That is what makes him so endearing.
