Rui - Tumblr Posts
More information on my Half-Demon! Tanjiro AU!
I really want to elaborate more on my AU, specifically about the demons and how they are dealing with the changes. So, here are some headcanons about them!
Here is the original Mastpost!
Rui
When it came to converting into a half demon, he was rather cautious about the idea, mostly because he didn’t want to lose his “family” and strength
Nezuko managed to convince him by promising to stick by his side while he works out the changes
They spent a lot of time together, which brought them closer and formed a genuine bond
This drove Inosuke insane though
Tanjiro was pretty weary about their relationship, but he eventually grew fond of the little guy
It took quite a while for Rui to truly come out of his shell
But when he did, everyone realized just how touch starved the poor baby is
He melts when given any form of physical affection and he is quite clingy
I headcanon that Rui has OCD, mostly because he likes everything in their proper roles, so I think he would make sure everything is clean and orderly
He tends to get flustered when he is dealing with large messes, so either Nezuko or Tanjiro has to calm him down
Despite the Kamado siblings’ affection and stability, Rui still feels like he’s missing something in his life
That is, until Tanjiro introduces him to Akaza (Tanjiro decided to introduce all the demons to each other)
Akaza and Rui immediately get along and become friends
Eventually, Akaza introduces Rui to the other upper moons (plus Enmu since he’s usually around Douma)
Akaza was rather nervous about introducing Rui due to the moon’s chaotic nature and Rui’s OCD
However, Rui sees that they have a deep connection despite the chaos and decides to stick around
Akaza: Sorry if they’re a bit chaotic kid, bu-
Rui: They’re perfect
Akaza: Huh?!
With time, Rui learns more about the upper moons and they grow on him
Akaza and Kokushibo are Rui’s father figures
Daki and Gyutaro are very close to Rui and they often hang out with the Kamado siblings
Finally Douma and Enmu sometimes drag Rui in one of their pranks or adventures
The Kamado siblings notice that Rui is less tense, more open minded and is a lot happier
Half demons mature and grow, so Rui and Daki do mature and actually get older as time passes
Although he still goes to the Kamadoi’s for comfort, he truly feels like he has a family with the upper moons
Akaza
I feel like he would be more open to becoming a half demon (I mean it’s better than dying, right?) so he takes up on Tanjiro’s offer
Akaza regularly has to pull Douma out of trouble, either it be pranks that have gone too far or making him act like a gentleman
Whenever anyone is sick, you can expect Akaza to come over and try to take care of them
He did NOT like Zenitsu when they officially met, but they became mutual once he learned that Zenitsu wasn’t that big of a pervert (mostly because he’s dating Tanjiro)
Akaza deeply respects Tanjiro and they tend to work together on projects involving the demons
Akaza wanted to repair his relationship with Rengoku (which yes, Tanjiro was able to bring him back) and Rengoku has rather nervous to do so
They became great friends, but Giyuu (who Rengoku is dating) doesn’t really trust Akaza
Let’s just say it took a LONG time before Giyuu trusted him
Akaza gives advice to the women (both demons and humans) on how to defend themselves from perverts
Akaza is typically with Rui and Kokushibo, probably doing some father - son activities
Akaza actually gets with Kokushibo after realizing that Koku could be soft
Akaza is a tsundere, hands down.
He’ll never admit that he likes being the little spoon or that he loves sitting in Koku’s lap.
He also finds Koku’s final form hot. (He doesn’t have a monster kink though)
Akaza: is there a Mrs, Kokushibo?
Douma: Are you fucking flirting with Kokushibo’s final form?
Akaza: He’s fucking HAWT!
During his free time, Akaza usually like to either read or take long walks,
Rui is usually by his side on said long walks
Enmu
As you can probably expect, Enmu did not want to become a half demon
But after a long battle with Tanjiro, he eventually gave in
This is mostly due to his bitterness towards Tanjiro after he killed Muzan
Tanjiro quickly learns about his relationship with Muzan and instantly knows that it was a toxic relationship and Enmu doesn’t see that
Everyone tries to tell him that their relationship was toxic, but Enmu just gets pissed off
Tanjiro notices a strange smell that Enmu has and decides to look into it
He found out that Enmu couldn’t differentiate dreams and reality as a human and that he didn’t feel most pain, which made Tanjiro even more curious
It wasn’t until Enmu pointed out a suspicious flower that Muzan used to make him eat did Tanjiro finally realize what was going on
Turns out, Enmu had been given drugs as a kid and Muzan had kept him on those drugs to stay numb
Tanjiro knew he had to convince Enmu that Muzan was making him take drugs
It took a while for Enmu to believe him, but when he did, Enmu fell into a deep depression
Tanjiro had tried many different ways to make feel better (having him take care of people, saying kind things to him, etc)
Eventually, Tanjiro had him meet the upper moors, which introduced him to Douma!
At first, Enmu was quite distant and confused why Douma would take interest in him, but spending time with Douma made him come out of his shell
Douma showered him with affection, which made Enmu feel special and wanted
They would go on a lot of adventures together and they would pull pranks on people
After a while of this, Enmu started feeling strange and he went to Tanjiro to know what that feeling was
Enmu: What the hell is this feeling?! It feels so strange!
Tanjiro: Awww, that’s love, Enmu!
Enmu: What the fuck is that?
Both Tanjiro and Zenitsu would help him with confessing to Douma
They ended up deciding to confess on Valentine’s Day (There’s simply nothing more romantic than that)
Turns out, Douma was also planning to confess, so they just ended up being a flustered mess while Tanjiro and Zenitsu were giggling in the distance
At first, Enmu didn’t understand how Douma could do something nice for him
He thought that he always would have to do something nice for Douma
So when Douma treats him, Enmu.exe stops working
They go on a LOT of dates (usually little adventures)
Douma
He also didn’t want to convert, so Akaza and Kokushibo had to hold him down and force him to take Tanjiro’s blood
Tanjiro had to keep an eye on him for a while to make sure he wasn’t going to eat anybody
Douma eventually gave up eating people and started pulling pranks instead
He’s the number one troublemaker in the upper moon and can make a normal situation into one of chaos and anarchy
When Tanjiro hosted the demon meet and greet, Douma’s attention immediately went to Enmu, mostly because he found Enmu quite fashionable
When Douma started falling in love with Enmu, he was also very confused
Douma: Whay the fuck am I feeling this way towards a man?!
Akaza: You might be bisexual dude
Douma: *confused screaming*
Douma loves it when Enmu lulls him to sleep with his powers
In turn, Douma takes care of Enmu and makes some fantastic meals
Douma will happily listen to Enmu when he’s either talking about the demon ranks and/or trains
However, Douma can be quite reckless on their adventures, which sometimes causes them to get hurt
One time, Enmu ended up getting severely injured because of Douma’s recklessness
Basically, they entered an area of the Humanoid island where dangerous monsters were found
They barely got away, but they were haunted by an evil being named Kingu Akuma
That was one of the few times Douma actually cried
Despite the heartache of this event, something awakened in Douma that would help him deal with a bigger problem later on
Kingu Akuma harassed them and made them paranoid
He also reminded them of their pasts over and over again
Unfortunately, this made Douma remember the traumatic event that made him lose his emotions
(I’m not going to say what that moment was here since I can explain it better when I write the chapters. Let’s just say it is based on an actual theory. People believed this might’ve happened to him because of how the cult dehumanized him)
However, he also felt a painful feeling that he couldn’t quite figure out
He didn’t realize what that awakened emotion was until he reunited with Inosuke
Although Inosuke didn’t remember what happened to his mother, Douma remembered it vividly
Douma couldn’t understand why he felt so horrible when he was around Inosuke until he confronted Tanjiro about it
Tanjiro was horrified by Douma’s confession, but was willing to help him due to Douma’s willingness to change
Douma then proceeded to tell Inosuke what he did and well Inosuke didn’t take it well (he tried to kill him)
Due his guilt, Douma tried to hang out with Inosuke, but Inosuke was having none of it
It stayed like this until Inosuke was forced to fight off against a rabid ram demon (I’ll elaborate on this fight in a different post)
Inosuke came very close to death, but Douma saved him from getting mauled by the demon
Together, they finished off the ram and came to a mutual understanding
Although Inosuke can’t forgive him for killing his mother, he can understand that Douma is trying to make things up and so tries to develop a deeper relationship with his stepfather
Due to the he harassment by Kingu, guilt, and retrieving his memoriess, Douma went insane and he tried to unalive himself
Akaza stopped him from going through with it and told him that the only way to get rid of Kingu is to face your past
That’s when Douma went to Shinobu for therapy
She saw his memories and was horrified
Shinobu had to rescue a child version of him (his humanity) from Kingu inside his mind
After some time, he gathered the courage to face Kingu and fight him
Douma couldn’t defeat him (since Kingu is the god of chaos and suffering)
However it did end with Kingu realizing that Douma has changed and he leaves Douma (kinda like how Death did to Puss)
Both Akaza and Kokushibo care for Douma, but they often get annoyed by him
Gyutaro hates him due to Douma pestering both him and Daki (They have a typical annoyed child and jerk father relationship)
Douma finds this hilarious and continues teasing them
Daki and Gyutaro
Daki was quite open to converting (mostly because she was convinced by Nezuko)
However Gyutaro had to be convinced by Daki in order to convert
Once they were converted, both Tanjiro and Nezuko wanted to shower them with affection (they felt that they deserved a better life than what they had)
At first they were very off putted by this, but they eventually warmed up
The Kamado siblings taught them more about their relationship and how to properly show love
Gyutaro: What the hell are you doing?
Tanjiro: Giving you something you never got, a hug.
Gyutaro: …
Gyutaro: *gross sobbing ensues*
Gyutaro constantly goes to Tanjiro for advice on how to be a better older brother
Gyutaro has also accidentally called Tanjiro “dad” a few times which sent Daki into hysterical laughter
Although Daki and Nezuko had to work out their relationship, they eventually became best friends
Nezuko would occasionally host a girl’s night out and Daki would be there right beside her
Both Daki and Gyutaro prefer to be around the Kamado siblings (mostly because they find comfort in them)
When they are around the other demons, they are usually dragged into their nutty shenanigans
Daki really loves being around Rui
She is like a mother to him and Daki smothers him in affection like Nezuko does
Gyutaro melts when he’s complimented (especially on his appearance)
Nezuko made Gyutaro a blanket with heating pads so Gyutaro doesn’t get cold and he loves it to death
They are very curious and love learning about the world
Lastly, they both just really love each other and they are learning to accept themselves
Hantengu Clones
I feel like Aizetsu would be the most willing to covert, but the others need some convincing
Sekido was definitely the hardest to convince, no doubt about it
Urogi and Karaku are best friends and they always cause chaos
Sometimes they’ll accompany Enmu and Douma on their adventures
Sekido usually has to pull them out of trouble
Urogi is definitely Aizetsu’s emotional support
Sometimes Urogi can go a bit overboard, but he tries his best to comfort Aizetsu
All the clones see themselves as brothers
Aizetsu and Genya do become friends, but it took quite some time for that to happen
They usually just have really interesting conversations. That’s how they usually hang out
Karaku, Nezuko, and Daki will always make sure that someone looks great for a date!
Sekido is the unofficial eldest brother, the other clones hate this
All the clones may tease Aizetsu, but if anyone else messes with him. They will have hell to pay
Aizetsu prefers to be around the Kamado siblings, they’re just so calming
He just gets overwhelmed easily, so he prefers to be in quiet places
Sekido hides his feelings and he’ll never admit to enjoying anything
Whenever Zohakuten needs to be formed, Urogi and Karaku usually try to have Aizetsu initiate it because he’s a lot more gentle than Sekido
Zohakuten is like a little angry gremlin
He will immediately attack anyone who calls him cute
Zohakuten: I’m not cute!
Zohakuten: I’m into hardcore death metal!
Zohakuten: I’ve got a scar!
Zohakuten: I branded myself with a hot iron once!
Zohakuten: I’m into Big Dumb Sweet Men!
Zohakuten: Don’t judge me, I’m not cute!
Despite Zohakuten’s efforts, Mitsuri still loves him
The wooden dragons are like little puppies that annoy Zohakuten
The only person that Zohakuten truly likes is Rui
You just can’t hate Rui
Hantengu actually prefers to be separated
He lives in constant fear so it’s nice to find happiness in the clones
Kokushibo
He was also willing to be converted (mostly because he’ll still be able to stay alive)
At first, Kokushibo would be incredibly jealous of Tanjiro
Because of this, Tanjiro decided to try to spend more time with him
Tanjiro found out about his brother and decided as a peace offering, he would help Kokushibo learn the various techniques of sun breathing
Although he doesn’t really learn it, they become close and they form a strong friendship
When He, Tanjiro, Douma, and Inosuke were fighting the jaguar demon, Tanjiro basically gave a speech about how no matter how powerful or weak the younger brother is, they will always look up to the older one
Kokushibo was deeply moved by this
Kokushibo deeply respects Tanjiro for defying his fate in a much more honest and honorable way than he did
He is Tanjiro’s right hand man and will always help him with plans
Kokushibo is pretty much the leader of the upper moons when Tanjiro isn’t around
He is like the stern father while Akaza is more of a relaxed father towards the moons
Kokushibo is also very peaceful and prefers to paint and draw alone
He gives great advice to the other demons on how to handle their changes
Kokushibo usually has to get the other demons out of trouble
He has a major sweet tooth, but the only ones who know this are Akaza and Mitsuri
Sometimes, he’ll eat some sweets with Mitsuri
Kokushibo: How the hell did you guys turn a picnic into a forest barbecue?!
Akaza: DON’T LOOK AT ME!!
Douma: *holding the match* I didn’t do it
He always helps Tanjiro convert other demons
(Okay time for some Kokuaka headcanons!)
Let’s be honest, Kokushibo would be dense af. He would have no clue that Akaza had feelings for him and Koku would have no idea that he loved Akaza back
He’d just think that he felt a strange feeling when he’s with Akaza
Kokushibo eventually figures it out after seeing Tanjiro’s and Zenitsu’s and Douma’s and Enmu’s relationships grow.
At the start of their relationship, Kokushibo was very closed. He acted very stoic, believing that this was they way to earn anyone’s affection
Eventually, Akaza softens him up. He makes Koku realize that it’s okay to show emotion
Kokushibo adores warmth (he’ll never admit it though). He loved to be close physically to his friends and always carries heating pads on him.
Kokushibo is actually really good with kids, surprisingly.
Poor babe gets a lot of headaches so he carries medication on him and he prefers to be awake at night
Although he has to put up with the craziness of the upper moons, he still loves them and will always help them
Tanjiro is incredibly proud of them and the progress that they have made
Tanjiro being a proud dad is so freaking cute
I love this AU and I’ve had a lot of fun with it! Speaking of fun, here are some incorrect quotes because why not?
Douma: *chugs mayo*
Enmu: Hmm that looks like our bedsheets
Akaza: *chokes on water*
Kokushibo: *gasps and covers Rui’s ears*
Tanjiro: I’m very uncomfortable with the energy we have created in this room
Rui: Every family has a gay cousin
Enmu: Bitch we don’t have a gay cousin
Enmu: Wait
Enmu: I am the gay cousin oH mY gOd
Tanjiro: Why were you calling me those awful things when we fought?
Gyutaro: Those were auful things?
Tanjiro: *starts tearing up out of guilt*
Gyutaro: WAIT, I’M SORRY!!
This is the best 4mins in anime I have ever seen this season and year!
Rui and Haku have my heart rn tempted to once again try and write something for them 🙏🏽💀
Rui and Haku have my heart rn tempted to once again try and write something for them 🙏🏽💀
could u make platonic headcannons for rui with a loving older sister / mother figure ? they can be modern if u want too !
---
Heyho
I tried making this modern au, but meeeeeeeeehhh
Honestly, writing this made me want to be his big brother fgejfgjofgijofgijo
I made the reader a demon, so sorry if that's not what you were hoping for!
Demon Slayer Masterlist
I hope this is what you wanted & you enjoy readin!
Rui x gn! reader
Headcanon: having a loving sibling
You were the only real family he had left, being his older sibling from the very beginning. You two had the same condition when you were human and got turned into demons in the same night
Rui forgot what a family bond felt like, except the love between siblings, thanks to you
His tactic on regaining that memory was the same, but he only got you two a mother and a father
Rui is scared of forgetting what a siblings bond feels like, that's why he is rather clingy
You two hold hands whenever you can
Not that you mind, it was actually your idea
He loves when you gently press the side of his face to your chest with your hand and put your chin onto the top his head. He feels oddly warm when you do that
You are the only one who can make him smile
He sometimes asks himself how you are so loving to him, even tho he seems like not loving you at all
"It's because you are my little brother. I have to show you how much I love you and protect you from all evil."
When you share a human to eat, you let him have the most and his favorite body parts. Every time he asks 'why' you tell him it's so he can grow tall and strong like you are. And even taller and stronger
He sometimes feels like crying when you hug him or give him a kiss on his forehead. He feel so loved by so little gestures
Rui probably gives up on your 'parents' and just lives with you. Because he realizes he only needs you to feel a family bond, to be happy and feel loved
You two live on Natagumo Mountain and try to live a quiet life which is a tad bit difficult, seeing you two are 'lower 5' and 'lower 6' and have to kill humans to not get killed by Muzan
But you manage togehter
Rui trusts you with his life, so when you tell him to do something, he'll do it without thinking twice
In your little house, you teach Rui everything you know about life, no matter for humans or for demons
Sometimes when you clean or cook, Rui helps you, like the nice little brother he is
aespa better things
august 18th
Beautiful. Perfect.
[ID: a drawing of the Hashiras from Demon Slayer. From left to right and to up to above, the positions are Mitsuri, Shinobu, Gyomei, Muichiro, Obanai, Sanemi, Giyu, Tengen and Kyojuro. Mitsuri is dressed up as Daki, has a flirting expression and her right hand is over her chest. Shinobu is dressed up as Rui, has his risk pattern on her face and has a cold expression. Gyomei is dressed up as Hantengu's main form, has gained his horns and ball on the forehead and has a calm expression while tears run through his face. Muichiro is dressed up as Nakime, holds her biwa and has a blank expression. Obanai is dressed up as Gyutaro, has his pattern of marks over his body and is looking away to the right. Sanemi is dressed up as Akaza, has his line marks throughout his body and has a feral smile. Giyu is dressed up as Kokushibo, with his flame-like face marks, four extra eyes with the six in total having red cornea and has a blank expression. Tengen is dressed up as Douma, has his hair down and holds his fan, is winking at the viewer and has a malicious smile. Kyojuro is dressed up as Enmu, has his circle eyes on his face and is looking away to the left with a calm expression. End of description.]
Upper/lower moon and pillar switcheroo V2 🔄, based on this old sketch X
I've always wanted to render this concept digitally, and I finally did!! 💞 My wrist can chill for a whileee lel. On a side note, thinking about their swapped backstories and character parallels is hella fun 🤭
Kny! Rui is one of my fav so i drew him.
Rui tumblr layouts for day 3 @hiddencircus's event ! prompt: circus or retro tech f2u with reblog / like and credit ! dividers used
they r everything to me (is it obvious i can't draw backgrounds)
"I'm not good at people. But I am good at tech. I thought... maybe... if I could use tech to help you… you'd like me. But I messed that up, too."
no extra today lol soz 🙏 but here is a tiny lil training/adventure montage for tanjiro (and nezuko who is off-screen haha) while hakuji-sensei tries to put soyama soryuu on hiatus so he can help the kamados. next time: hakuji goes to find the kamado sibs!
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Random KNY Thoughts
It just occurred to me that the Twelve Kizuki and Muzan are probably all from different time periods. That must be so weird for them during meetings. Like you’ve got really old fucks like Muzan from the Heian Era .
Then you have people who are a bit younger but still ancient like Kokushibo who could have been from about the Sengoku period of Feudal Japan.
Then perhaps (this is a rough estimate) people from the somewhere in the Edo period like Akaza and possibly Douma.
And though this is pure speculation, younger demons like Enmu or Rui (I get the feeling most of the lower ranks can’t have been around more than 100 years because they get killed off so quick) who might’ve become demons during the Meiji period. All in one fucking place.
Gotta be weird as hell for everyone involved
I've been thinking about kny and I think my favorite thing about it is the fact that all of the demons that turned human (before and after death) have done so because of love.
Rui is the first demon we see turn human because of love. It was after death, but he turned human because of his parents' love for him, and vice versa.
Next is Ume and gyutaro. Ume turns first, so I'll talk about her first.
Ume turned human after death because of her love for Gyutaro. If she didn't love her brother the way she did, she most likely wouldn't be human.
Gyutaro was next. He turned human after death, too. He turned because of his love for Ume. She reminded him that they promised to stick together through everything, and because he loved her, he decided to keep the promise and let Ume join him in hell. He also turned human then. Again, not possible without love.
Nothing like that happens for a while after, so beware of manga spoilers below the cut.
The next demon to turn is Akaza, yet again because of love. This time though, it wasn't familial. He turned because of love from several people, but mainly his fiancee. She showed up first, and she provoked the memories, for lack of better phrasing.
Koyuki begs Akaza to stop and just move on so they can be together again. Akaza's dad tells him that he's okay and that he doesn't need to fight anymore. Keizo tells him that he's okay, as well, and that he'll never stop loving him. Then, Muzan steps in.
Muzan tells him to keep getting stronger, and again, Akaza almost continues-- but then, Koyuki steps in. She tells him that it's okay and that he doesn't need to fight anymore. And that's when he fully turns human-- before that, he was, technically, but when Muzan showed up, he became a demon again.
He apologized so much to Koyuki for things out of his control, but Koyuki told him that she was just glad to be able to be with her husband once more.
And then, Akaza completely disintegrates. He's dead now. We see Koyuki join him in hell.
Anyways if you couldn't tell I love hakukoyu--
On to Nezuko. She's the next. She turns because of both a medicine from Shinobu and Tamayo, and because of love from others. She recalls Tanjiro inviting her home, and she turns fully at that point.
Tanjiro is the last. When he's a demon, none of the slayers present can bring themselves to behead him. They all love him too much. And so they force him into the sunlight, but of course that doesn't work-- he can be in the sun. Nezuko-- now human-- joins the fight. She runs up to Tanjiro and he bites her shoulder, but she doesn't let go of him. He also doesn't kill her, in fact doesn't even intentionally harm her beyond the bite.
He tries an attack, and Nezuko puts her hand in front of it, but the attack misses. He's fighting back against Muzan, of course. Kanao rejoins the fight, and she has a cure. She stabs Tanjiro with it and tells him to stop.
In Tanjiro's mind, he's trying to get back to Nezuko and the others. He is being helped from behind by the ghosts of his dead family, and in the front, he reaches the arms of all of his living friends and, of course, Nezuko. She's the first one he reaches, too.
If it weren't for everyone's love for him, he wouldn't have become human again.
In the middle of rewatching Demon Slayer with a friend for their first time watching, so I drew one of favourite demons from it AKA Rui : ) 🕸️🕷️
