Ichiban Kuji Yu Yu Hakusho: The Gate to the Demon World Arc
Sensui & Itsuki will get their first MASTERLISE figures!
■ Release Date: Scheduled for late September 2026
■ Official Site: 1kuji
Look Forward to Further Updates!

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Ichiban Kuji Yu Yu Hakusho: The Gate to the Demon World Arc
Sensui & Itsuki will get their first MASTERLISE figures!
■ Release Date: Scheduled for late September 2026
■ Official Site: 1kuji
Look Forward to Further Updates!
DEMON SCHOOL HEADCANONS.
HELLOWWWW! Debbie reporting here, well, i was reading some headcanons of the demon world and seeing one made me make my own headcanon just merely of the demon world, i will write about the diaboys later, anyways, enjoy until i dissapear again ✌️ (AND!!! In any case the acount is seeing this, which i see impossible, thanks for making that masterpiece, other thing, all credits to them!)
ەBefore we start, remember this is solely my thoughts, facts and opinions😅 alright, with that clear, we can start now. 🫶
ەCastle: As everyone can see, the castle's school is made of black stone and aged marble, with thin towers that pierce the mist.
Has high arched windows, red and violet stained glass windows that shine like eyes when the moon is full, too bad for the humans since the window's are special and only for vampires
Main iron doors with ancient symbols engraved on them (you don't fully understand them… and it's scary).
Has a stone path surrounded by twisted trees; The leaves are never green, always in dark tones.
Crows and bats as “living decoration” of the place.
ەHallways: As ya'll can see, it has very long hallways with eternal candles floating althought they don't drip wax since the light is magical.
Burgundy rugs that cushion steps: you never know who is coming behind you but you should have in mind that it wouldn't be always a vampire.. It could be yourself, so, the better option is go with someone you trust althought it will be neither the best idea.
Ancient armor and portraits of noble demons that seem to stare at you as you pass by.
Deep shadows in the corners; The echo of footsteps feels stronger at night.
ەForbidden Library: Has soaring ceilings with shelves that reach into the darkness.
Crunchy wooden moving stairs.
Books with chains, seals and shiny symbols which means; "open it and it will become you into a corpse bride so the students plays with you" yand, with that, that will be already your responsability (i just will say that they go out clean knowing that wasn't neither will be the last time it will happen.)
Study tables with candlesticks, dark ink, antique pens.
The windows are so high through which a bluish moonlight enters, cute viex with imagining it btw.
ەClassrooms: They usually has lack wooden tables, engraved with runes, and, yes, it's totally forbidden to do any kind of decoration, if they do it, they're punished with being treated as a blood bag even to vampire girls.
Obsidian slates where chalk leaves silver marks.
Seats assigned by lineage (yes, hierarchy even where you sit).
Hanging chandeliers, they usually has soft light.
Dense silence when someone of ancient blood enters.
ەNight Gardens: The internal gardens has dark water fountains that reflect the moon.
The most famous kind of flowers are the black roses, silver lilies and purple vines.
Cold stone benches for secret conversations.
Ancient statues covered in moss, i wouldn't be surprised considering that the school was many of Karl's castles.
Small trails where pacts are made in whispers, yeah, even the pacts exist in the demon world.
ەBedrooms: The rooms are exaggeratingly large with heavy curtains.
Four poster beds, dark fabrics, small candles, that's all they will get.
Old mirrors that distort the light a little meaning that not everything was real.
Huge windows facing the forest or the internal patios, kinda scary for my opinion but anyways.🤷♀️
Each bedroom reflects the lineage: some luxurious, others restrained.
ەDoors hidden behind tapestries: Inside there are circular rooms for agreements, pacts or just couples wanting to screw or just kiss in private althought the people around them see them entering but as long as it wasn't in middle of the stands everything was fine.
Has long stone tables.
Symbols on the ground that glow when deals are activated but it just get active with the pure vampire's blood.
Echoes of ancient voices on the walls, could be of a long loss bride as the ghost of any girl begging for release.
ەBeing there is: Beautiful, elegant almost like being there feels like walking into a living Gothic having paintings and gardens in true is silent yet tense with full of secrets, the clans there are politically dangerous.
Now, with that clear we can go to the other's few things i was excited to write from the beginning.🥹
ەThey have a club called ''The Covenant Circle'' but they use it as ''T.C.C'' just in case someone that isn't close to that circle wouldn't pester them, OKAY! I know i'm being harsh BUT that's the lenguage they use just because they think they are better for being ''pure'' blood vampires😭 but, anyway, what of ''the political elite'' can enter.
ەWhy or what exactly is that: Is a secret club where future leaders are trained to negotiate, betray and form alliances.
ەWhat they do:They simulate pacts between clans.
Learns to read lies or make them doubt of what they were saying just to see if they atumble in their own words, which surprisingly, works but NOT always.
They rehearse “controlled” betrayals.
They exchange royal favors.
ەWho fits:
Reiji, who will be senior official.
Ruki, who would emerging strategist)
Carla, who will a honorary member.
Shu, who is the guest who never comes but everyone wants specially for the ones who just showed interest when someone say his name.
ەThe Forbidden Library (dark knowledge):
ەWhat is it: Is a club that has access to sealed books: real demonic history, ancient magic, old pacts.
ەWhat they do:
They translate ancient texts.
They discover secrets of lineages.
They store information as a currency of power.
Some sell secrets.
ەWho fits:
Shu, again but for knowledge and (maybe for make other more students join.)
Reiji, jus for control.
Ruki. who is just there out of ambition.
Azusa, my boy just enters without anyone noticing.
Kanato, yeah, he wants to learn even more just because he wants to more instead of dolls, so, he willve interested more in doing pacts.
ەThe Raven Network or T.R.N. (espionage and gossip):
ەWhat is it: Is a information club just for clans who are intersted in social spies.
ەWhat they do:
They collect rumors.
Exchange secrets.
Follow influential students just to use that same influence.
Manipulate reputations with few gossips even if they are true or nor, your image will be ruined forever if you're their target specially of male students if you reject them for asking out.
ەWho fits:
Laito, who will be the star number 1 informant.
Kou, just for being a social drama provider.
Azusa, who is a silent observer.
Shin, who will a excelent chaos useful for distraction for other plans just to ruin that person life more.
ەThe Night Duel Club (prestige and status):
ەWhat is it: It's usually for duels of prestige, supernatural power, and emotional control.
ەWhat they do:
Mental resistance skills.
Self-control tests.
Aura Mastery Challenges.
Win = rise in social status.
ەWho fits:
Ayato, that live to win no mattering the cost.
Subaru, gets in out of anger because he ''was obligate'' but in fact was becaused he was interest just to beat the ass of Ayato.
Yuma, enters out of loyalty wanting to protect his brothers.
Shin, for pure adrenaline.
ەThe Midnight Garden (clandestine emotional club):
ەWhat is it: An almost mythical club where those who do not fit into hard politics meet.
ەWhat they usually do:
Honest conversations.
Moments of shared silence.
Reading, music, emotional refuge.
Nobody talks about what is said there.
ەWho fits:
Shu
Azusa
Subaru (secretly)
And sometimes Kanato (when they don't look at him strangely.)
ەOKAY! With that information we can go to other part so we can start with the diaboys!
ە🏫 What is a demonic school?🏫
It is not normal “school.” It is VERY kinda of:
a training center for heirs for other unknown clans.
a political academy.
and an elegant social battlefield where they wouldn't mind throw you by the window for receiving more attention.
There you are not going to “learn math”: you are going to learn how not to die in the demonic court.
Hallways that are called as ''The Heart of Drama.''
ە💼BASE UNIFORM (academy standard).💼
Top:
Fitted black blazer with edges in aged silver or gold thread.
Slightly Victorian high collar.
Metal buttons with the academy emblem (an ancient engraved symbol).
Ivory white shirt (never pure white, too human).
Tie / Bow:
Deep burgundy.
Some wear a brooch with a family crest.
The color may vary depending on the hierarchy.
Lower part:
Elegant straight cut black pants or sometimes dark pleated skirt with subtle metallic thread details, well, ir's up to anyone to do alterarions
The fabrics are thick, heavy, with a fine texture almsot as if they were eternal.
Optional cape (high bloodlines only)
Yes, LAYERS (Before anyone say something, in my mind they have it.😅)
Wine red or dark purple interior lining.
Embroidered in fine thread with the clan symbol.
Only ancient blood students can use it in full.
The others have a short version or without embroidery.
The layer basically says “I am important” and more if the Sakamakis are using them.
Differences by hierarchy
The ones of ancient blood as the Tsukinami wears:
Gold edges.
Large and visible emblem.
Thin black gloves.
Sometimes ceremonial staff (not obligatory).
All of them have imposing presence, always in a impeccable uniform.
Noble vampires (Sakamakis):
Silver edges.
Perfectly fitted cut.
Discreet family brooches.
Always impeccable shirt (although some wear it wrong on purpose).
Converted/hybrids (Mukamis):
More sober edges (dark gray).
Same design, but without flashy family symbols.
Some personalize small hidden details.
ەHow would the diaboys handle it?
Shu: open blazer, loose tie. Elegant without trying.
Reiji: impeccable, buttons perfectly aligned.
Ayato: well-placed blazer, but dominant attitude.
Kanato: perfect uniform… but disturbing aura.
Laito: small personalized details, fun look.
Subaru: rolled up shirt, more relaxed look.
Ruki: everything strategically measured.
Kou: he wears it as if it were a catwalk.
Yuma: He looks strong even in a formal uniform.
Azusa: impeccable, but discreet.
Carla: perfectly draped cape, looks like royalty.
Shin: Slightly messy on purpose.
ە🩸 Subjects (yes, they are intense.)🩸
ەHistory of Ancient Clans if anyone ask, yes, they study more of who betrayed who, who founded which lineage, and why you shouldn't trust X family.
Social Strategy and Manipulation
How to read intentions, detect lies, and move pieces without being noticed.
Emotional Control
They don't teach you how to feel: they teach you not to lose control when you feel.
Night Nobility Etiquette
How to behave at banquets, pacts, audiences with greater demons but it applies more for female students since their expectations are on them.
Ancient Languages and Covenants
Archaic languages to seal contracts (words = royal power).
Supernatural Defense and Resistance
Mental physical training to not break under pressure.
ە👑 Hierarchy within the school. 👑
Old blood = preferential treatment
Converted or hybrids = they must demonstrate double
There are secret clubs according to lineage.
Powerful families place their children in prestigious positions but the bullying is not direct: it is political. They take away your allies, not your notebooks meaning they all don't have pity on anyone since they all are enemies wanting power under the same roof.
ە✍️ Unwritten student rules. ✍️
Don't show weakness in public.
Don't fall in love with someone "inconvenient."
Don't reveal family or important clans secrets.
Never humiliate someone with more power than you…unless you have backup.
ە🥂 Social life (drama guaranteed). 🥂
Night dances meaning posibilities of implicit alliances.
Prestige duel (who has more influence).
Rumors that destroy reputations.
Professors who also play politics.
Blatant favoritism.
ە🕸️Psychological outcome in students. 🕸️
Thanks to all the pression everyone put on them, they will start to grow:
Hyperalerts.
Emotionally repressed.
Very good at reading others.
Bad at expressing what they feel.
With fear of loving “badly” politically.
Mini classroom headcanons:
Those of ancient blood sit at the front, as if the classroom were theirs.
Hybrids prefer the background so they can observe everything.
In the library there are sections closed only to certain last names.
The hallways are used for silent pacts.
Punishments are not physical: they are social isolation.
"YOU ARE MINE TO DESTROY!"
NOT BL
Deirou and Red(Red is the left)
Info because yes:
Red Kirasiku: he is still 9 years old now but in the drawing he ie there 25 years old(i will talk about the Red now, the kid), Red is a son of one of the Four Divine Demons, the second divine demon whose name is Satanor Kirasiku, Red is also the son of the strongest Element Demon: The Fire Element Demon Yurian, Red is born with too much maturity, he knows whats wrong and whats right, he lacks his smile because he took it from his father, he is quiet and sharp, but for the demons that know him, he is caring: like a scene in the manga he helped Sally get well after she burned herself and even fed her even though they arent really close friends, he always take care of the younger and chaotic high demons he knows
Deirou: Deirou is a Negative Demonic Side Creature(NDSC), he is born with Red like they are almost twins. as an NDSC, he is not really sane since birth(and since NDSCs are always knows everything since birth), at the first 8 years of Red's life, Red didn't know he had a NDSC, but then when he exerted his power at his 8th birthday, Deirou had the ability to make himself visible to Red. Deirou, even though he is still 9, he looks like someone in their 20s because of his body growth(NDSCs grows 2.5× faster than normal) also he doesn't act like a child, he is insane and destructive, all he wants to ruin Red(the NDSCs' job in short:), also Deirou doesn't have a clan or even parents since he was created from nowhere, and yeah for me he is the most evil NDSC that i have, and also he doesn't walk, he ALWAYS floats, and he doesn't use his actual hands for a reason
process:
i love Deirou's design and his scarf gah dayum
and if you want to know whats so special about his scarf? well his scarf literally works like an actual arms, they are cannot be shattered, also can get VERY long as Deirou wants, also the what its called fingers are SHARP, like really sharp, also they are strong that they can lift anything
Also, Sally belongs to @sawiso
Where are all my Glorio and Degesu fans at? I barely see any art of them anymore 🥲
full reviews : hakumei and mikochi, lightfall, nicola travelling around the demons' world
Well? What's their favorite worlds then?
I'll do you one better, both favorites and least favorites!
Favorite Worlds
Rippen
How could he pick just one favorite world? That'd be impossible- Dinosaur Cowboy World. It's a classic, learned many valuable lessons, changed the most, made some friends and he gets to ride a dinosaur! But he does also have a very good friend in Superhero World, hmm...
Larry
Clown World. Good memories there, even with people who turned other memories sour, this place still retain its goofy charm. Especially that Soda Parlor, always manages to make him smile somehow.
Penn
Superhero World. For the very few minutes he had superpowers and fulfilled some of his childhood dreams...
Sashi
Old English World. It was a breath of fresh air to be away from the boys and hang around Larry and Rippen (when he was around). Her acting skills weren't too shabby.
Boone
Monkey World... enough said.
Hated Worlds
Rippen
Hate is such a strong word, y'know? How could one possibly hate- Plush Toy World. Giant, loud babies/toddlers and possibly the most annoying form ever to be zapped in? He's adorable and huggable, yes, but have you ever had to be stuffed, over and over? No? It's not fun at all. He would've chosen the Nothingness, but that's a void, not a world.
Larry
Musical Fairytale World. Your deepest, truest feeling comes out in song and is the main form of speaking? No, he can't talk about his feelings... he can't... he can't ever again 🤐. Body World was technically a worser experience mission-wise.
Penn
Superhero World. Doesn't have superpowers there, but Rippen does? Total rip-off, he was so excited to be a supervillain. And the betrayal he suffered?!
Sashi
Demon World. Mostly because of what happened after the mission rather than the world itself, it's not the world's fault, really.
Boone
Rock, Paper, Scissor World. He was literally attached to Penn! Do you know how infuriating that is? Extremely!