Kawaiidreamertrashexpert - Dream Land - Tumblr Blog

Connecting with thousand year old teen mammon is difficult for papamon

I got this idea that when sitri was in hades Levi paid extra attention to him and that made all of the hades devils jealous

Leviathan: *Looks at younger Sitri*

Sitri: 😇

Leviathan: *Picks him up*

Leviathan: I'll mold you, into my imagine.

Sitri: 🤨

Leviathan is to blame for how Sitri is now, he is Sitri's unintentional dad.

How Gabriel got his "Angel Killer" epithet:

(video is from tg@retra)

who knew that sitri was the satan/leviathan love child all along

Sitris ass appreciation post



It’s so fat I could use it as pillow….

If put some oil on it will become a war weapon…

One slap of ass is enough to break the sound barrier

If he sits down too fast he bounces…

Ass is so fat he’s underwear and pants gotta work over time…

Lulu descended down to hell to see what competition he had up in heaven…

I need to see this man’s ass oiled up in 4K rn

Andrealphus went blind when he saw sitris ass (sorry andreally)

Michael started eternally cried when he saw that ass for the first time..

Lucifer 3

Summary: You’re curious about Lucifer’s mouth. So, you ask him to open up. Eventually, you two cuddle.

(More Embittered Companion and Lucifer because he has not exited my mind. Casual intimacy is something I really like.)

Lucifer comes and goes as he pleases, but he always makes sure to knock before coming into your room. It’s become a routine by this point, for Lucifer to come by in the middle of the night, crawl into your bed, and sleep until the morning comes.

It’s pretty much become a thing that brings you comfort. There’s something nice about having someone you actually trust dreaming in the same bed as you. Reminded you of all the times you, Minhyeok and Ra-on would share the same tent back when all of you used to camp every other month or so.

But, that was another routine lost, and one you’re rather sure that you’re not going to get that back.

And here you both are, you sitting up against the bed frame as Lucifer lazily lifted himself up on his elbows. He yawned, jaws wide and tongue flicking over the points of his teeth.

“Can you open your mouth for me?”

You’ve seen his teeth poking past his lips many a time, but you’ve been meaning to take a look at them up close.

Lucifer raised an eyebrow, and you expected him to ask why, but instead he rose, leaned his head forward, and let his jaw go slack. He’s more agreeable in the morning, huh?

“Thanks,” you said, tilting his head back with a finger under his chin.

Sharp thing, all of them. Looking ready to sink into delicate flesh all for the purpose of ripping and tearing. His fangs looked eternally dyed in that red color, as though he spent the night feasting on something bloody. But no, he was here with you the entire time.

You tucked strands of his hair behind his ear, and Lucifer lolled his tongue out.

“Put your tongue back in,” you laughed out, lightly flicking the muscle. “I just want to look at your teeth.”

Lucifer blinked at you, almost lovingly as he swirled his tongue once over your nail, then pulled it back in. You think you’re putting him in a mood. His breathing is starting to lean more into panting.

You tilted his chin down, coaxing him to lower his jaw to get a better view of his bottom teeth. You tapped a nail against the front most tooth. The sharp point of it accidentally slipped under, and you flinched when it almost went too far in.

“Ow.” It didn’t hurt, but you couldn’t help the instinct.

Lucifer’s eyes widened and his hands immediately cradle your wrist. He didn’t say anything as he closely examined each of your finger for even a single hint of a cut. He furrowed his brow as his mouth clicked closed.

“I’m not hurt, I just poked your tooth weirdly. Slipped under the nail for a second.” You didn’t stop him from smoothing his palm against your own, as though committing the feeling of your skin to memory. You slipped your fingers between his own, pulled back, and pushed in again. A small habit. It always brings a softer light in Lucifer’s eyes. Something about your hands always gets to him. “Mind if I look again?”

You haven’t even gotten to the red-tipped fangs.

Lucifer had an almost drunk air around him, heavily leaning against his other arm, thoughts probably slow to connect to one another as he focused entirely on you. He crawled forward and pressed a gentle kiss on your inner wrist. His half-lidded eyes practically glowed.

“Well?” You asked with a half-smile. Lucifer lips nipped at your forearm, aiming higher and higher until his face was fully in your shoulder. His body pressed against yours. “I guess that answers that, huh?”

“Mm-hmm.” Lucifer was slowly laying his weight upon you, his legs parting to fully seat himself on your lap.

You snapped the band of his underwear and laughed when he jumped.

“Alright, alright,” you said, brushing away the curling strands of his hair just to get a better look at the flush on his cheeks. He fully buried himself in your neck, arms loosely wrapping around you. “Guess we’re cuddling.”

“Mm-hmm.”

Shame. You were hoping to have a walk in the early morning, when there wasn’t a crowd of devils gathering in the park you found.

“Want to use my leg to take care of that morning wood of yours?”

He snuggled deeper into your body. “Mm-hmm. In a bit.”

He really doesn’t understand how cute he is.

Ronove masterlist

-

Ronove nsft hcs

Edging, restraints cock rings

(Continues ^) overstim and praise kink

Tears rolling down my face

I made a lighthearted shipping template for ocs!! this went a few rounds on twitter so i wanted to post this here too!

ft. transparent version !

Sound on 🔊🔊🔊

Niflheim gang ordering takeout after recently recruiting Andrealphus

Belphegor just sleeps through the car ride. Everyone else is just waiting for their orders

If WHB had PvP: King interactions

⟡ Masterlist ⟡ 

A/N: Started playing new gacha game with PvP arena and got me thinking how the kings would react to having to fight other kings or their own selves ^^

─── ⋆⋅☆⋅⋆ ───

Satan vs. Satan

"Wait, that's me?! Do I also have clones now like that fly bastard?"

"Hahaha I hope he enjoyed that as much as I did!"

"I'm not that short, c'mon!"

"Do you think that guy also has his own Sitri or do we both share him?

Satan vs. Mammon

"Who are you calling short?"

"This is what you get for taking what's mine!"

"Do you notice me now?"

"Heh, you won't see this one coming"

Satan vs. Beelzebub

"No matter how many clones he has, I'll beat him anyway"

"You stay away from my knees! Don't want a repeat of last time."

"This was the last time your clones took turns with MC!"

"After we're done here, wanna grab drinks?"

Satan vs. Leviathan

"Here's a little taste of what will happen the next time you'll try to kill MC!"

"About time someone burst that bubble of yours!"

"Time to wake up and smell the roses!"

"Who even is this guy, wanting to go back to school?"

Satan vs. Belphegor

"Man, imagine being able to sleep. Couldn't be me!"

"Oh hey, did anyone else see that corpse reanimate itself?"

"For someone who sleeps all the time, he sure does look tired."

"That guy Beleth, I could use someone like him too."

Satan vs. Lucifer

"Heh, look who just became a harmacist!"

"I wonder... if he injured me, would he also heal me afterwards?"

"When I first met him, he seemed weaker... Still, he's no match for me!"

"I heard a squeak earlier... Did I accidentally step on that tiny piss ballon?

Mammon vs. Satan

"Oh? I'm sorry, I didn't notice you down there."

"I don't mean to be rude. It seems he's very insecure about many things."

"He's like an adorable kitten when he wants to play punch."

"I like small things"

Mammon vs. Mammon

"Ah, what a strange state of affairs. I must've somehow gotten multiplied."

"If there's two of me, does that mean we must share?"

"Do I own him or does he own me?"

"So this is what it feels like to be a Beelzebub."

Mammon vs. Beelzebub

"My subjects tell me he's more in Tartaros than in his own country"

"His food is palatable with enough gold on it."

"If I recall correctly, he tried to eat one of the pillars in my castle."

"I won't hold back the next time he whisks my master away."

Mammon vs. Leviathan

"That coffin seems valuable, I shall look into it more"

"I must admit, Hades is a beautiful country."

"Leviathan could use a visit to one of many Tartaros' spas."

"He's so pale. He should go out more."

Mammon vs. Belphegor

"I do respect a country which hasn't descended into chaos with the king mostly absent."

"I shall send him some new bedsheets. Who knows when was the last time he's had them changed."

"Ahahah, I do admit you do have a very unique power!"

"Such lifestyle does look appealing, alas my country would greatly miss my presence."

Mammon vs. Lucifer

"I respect you deeply. This is nothing personal."

"If you require financial aid, do not hesitate to ask."

"I hope Buer is satisfactory in his position as a healer"

"Do you miss your father as much as I sometimes do?"

Beelzebub vs. Satan

"Huhu, you're cute trying to fight me!"

"Oh, we were fighting?"

"I'm bored, let's jump someone together!"

"Hm, I kinda want a snack now."

Beelzebub vs. Mammon

"I could use a bigger meal."

"I just heard one of the Tartaros' beaches calling me. I have to go."

"Maybe we could go visit my favorite Abyssos casinos afterwards!"

"Hm, I wonder how the pillars in his castle taste like."

Beelzebub vs. Beelzebub

"Oh hello, me!"

"I see you're handling everything here, so I'll just get going."

"If you go to that café in Gehenna, I can go to that stall with fish sweets in Hades..."

"Are you Bael or are you really me?"

Beelzebub vs. Leviathan

"Levi! Nice to see you again!"

"I wonder if he liked the last souvenir I bought him..."

"C'mon, next time I'm in Hades I'm treating you to a fish steak!"

"Sometimes I think he'd love to give me a noose around neck too."

Beelzebub vs. Belphegor

"You won't mind if I borrow Beleth for a few weeks, right?"

"Ah, how is Andrealphus doing?"

"I wish I wasn't so busy and could just lay in bed all day!"

"If only Bael was here to see how well can a country flourish without the king being around all the time."

Beelzebub vs. Lucifer

"Next time invite your angel brothers along."

"I don't need anymore shots for now."

"Another Seraphim down."

"Paradise Lost is pretty, but the smell is horrible."

Leviathan vs. Satan

"Ah, how pitiful you'd even try to mesure up to me."

"Size matters, don't you know?"

"I expected nothing less from you."

"Someday you might grow out of it."

Leviathan vs. Mammon

"A shame, truly. You seemed as a worthy ally."

"Money isn't really what matters. It's beauty."

"That palace of his is very tacky, don't you think?"

"I've won, of course."

Leviathan vs. Beelzebub

"Ugh, just please stop talking."

"You're lucky you're not one of my subjects."

"I shall end you quickly to end my suffering."

"I wish I could be back at my castle."

Leviathan vs. Leviathan

"Finally, I get to defeat myself and come as the winner!"

"Who dares to multiply me and make me compete with myself?!"

"Hm... That color doesn't seem to suit my complexion."

"I'm jealous of other people for being able to see me from such point of view."

Leviathan vs. Belphegor

"Oh, to be able to stay at home all day without being interrupted."

"My coffin is way more comfortable than that cheap bed."

"Hades is beautiful and blooming, unlike Niflheim."

"Where is this Beleth I keep hearing about?"

Leviathan vs. Lucifer

"I shall keep an eye on you at all times."

"All angels are deemed untrustworthy in my eyes."

"I will never forgive your kind for what you've done to us."

"Perhaps, you'd also like to forget your past?"

Belphegor vs. Satan

"Man, your existence's gotta be terrible..."

"Jeez, why are you so loud?"

"Anger drains so much energy..."

"Couldn't be me..."

Belphegor vs. Mammon

"Nice pillows..."

"All that gold looks uncomfortable.."

"Wonder how nice the hotels are in Tartaros..."

"Can ya get me some figures at the Hellcon?"

Belphegor vs. Beelzebub

"Ya exhaust me..."

"Tell Bael I ain't givin' Beleth to anyone.."

"Ya gotta be tired from all that runnin' 'round..."

"Ugh, I'm exhausted..."

Belphegor vs. Leviathan

"Six... I'll have ya obliterated!"

"Ya remind me of that one anime character that dies in the end..."

"Imagine putting all that work in just to look like that..."

"I wonder when they'll announce another season..."

Belphegor vs. Belphegor

"Oh?"

"Well, what in tarnation?"

"Makes me double tired..."

"Ope, am I still dreamin'?"

Belphegor vs. Lucifer

"Hospital beds ain't comfy..."

"This Hell might be big enough for the two of us..."

"Agares might need ya soon, if he don't shape up..."

"That Andrealphus, he seems hurt, check up on him, will ya?"

Lucifer vs. Satan

"Humans believe you've taken on all my wrath towards my father. Thank you for relieving me of such impure emotions."

"You. I'd expected you taller."

"I deeply apologise for all the grief my brothers have caused you."

"Morax asked me to remind you to wear your mouth guard."

Lucifer vs. Mammon

"Ah, father must've been very generous while creating you."

"I can sense a deep sadness within you..."

"If your horn stump becomes painful, my doctors can help you."

"There were many demons who required back pain treatment after carrying his riches."

Lucifer vs. Beelzebub

"I was told my brother fears you. If that is what will keep him in line, I shall support such occurence."

"That Phenomenon, what exactly is it?"

"I believe you're due in for another health check up."

"They call him wandering king and yet I have yet to see him vacation in Paradise Lost."

Lucifer vs. Leviathan

"My lord, you truly are the epitome of vanity."

"Could you please keep your servant in check, so we do not have to use spells to ensure our morgue doesn't get broken into?"

"The amount of Hades demons addmited to the hospital because of thorn injuries is great. I wonder why?"

"I am deeply sorry for all the horrible things you've been through. I should've intervened."

Lucifer vs. Belphegor

"I feel insulted to be now considered your fellow."

"I believe we do have a cure for narcolepsy, If you'd be interested."

"Beleth, that name sounds familiar..."

"That halo doesn't seem like it was your to begin with."

Lucifer vs. Lucifer

"Has... father created another copy of me?"

"Am I so easily replaceable?"

"So this is how all the other demons see me... I now understand."

"If there's two of me, I shall work twice as hard now..."

🪰 is still funnier than me and talented and beautiful. Get praised in public, Idiot

____!Michael!!!! (Spoilers)

I can't!!!! What the hell!! This is so cute and sad at the same time!!!

So, Angels start of as babies, good to know. And those baby wings!!!

This too cute!!!

Had a thought over the weekend;

Imagine an L-Card for each of the Kings, but it’s wedding themed.

I know it probably probably wouldn’t fit with the main story, unless it goes down the “It was all a dream” angle like Levi’s School Uniform card.

But think of the potential! The kings in formal wear, especially if it’s based off of their country’s inspiration, and the story would be fluff-tastic!

Well, until they consumate the marriage, that is, but even that has potential to be sweet with all the newly-wed pillow talk.

I need more of the Kings in formal clothing, I’m begging.

New Update for Michael's Christmas Card!

BABY MICHAEL??????

if this is him as a baby I'm offering to babysit because omggggggggg that sweet little face.

Happy Easter! 🐇🪽

I wanted to draw gabriel for easter (and easter is hilariously the day before april fools), so have a semi-art dump!

cw: nudity under the cut lmfaooo

Little Foras headcanon based on nothing but my silliness

After CH5, I fell in love with Hades. Especially Foras. The Kings' closest nobles act like magnets on me, what can I do. 👀 There may be light spoilers, but I won't post any screenshots in case anyone wants to read it and hasn't finished CH5 yet.

So, for me Foras is one of the youngest nobles, and this thought lives in my mind rent-free. Of course, he's an adult. But he is closer to a twenty-year-old when both Barbatos and Glasyal seem much more mature.

I recently went through the comics again to see them after what we learned about in Hades and this caught my attention.

Poor Foras, to be pulled by the horns. You know what it means to the devil.

This is the moment Leviathan accepted Foras as his nobleman. It's obvious that Barbatos has been here for some time.

Let me remind you what we learned from the event at Avisos. Beel told Amon, when he accepted him as his noble, that some devils find their calling on their own, while others need a trigger. Amon had just come of age. This may suggest that it is younger rather than older devils who feel this calling, since such a young man was considered as somebody who need to get a trigger.

Of course, we don't know what happened earlier, but Foras doesn't look very traumatized in this comic. It's possible he found Leviathan himself.

I don't think anyone will deny the next one. He's such a fanboy.

He resembles a teenager totally in love with his idol.

Levi, you complained that you didn't like the undying loyalty of your nobles, so what is it, you little liar?

No explanation needed.

As I promised, there will be no screenshots here, so as not to reveal anything specific.

In CH5 we saw that Barbatos and Glasyal (especially Glasyal) can oppose Leviathan. They do it in a respectful, clever way, but they are able to suggest to him that he should consider other options, and in such a way that he will not hang them (okay, Glasyal is hanged, but tell me straight in my face that he didn't want it). Foras, on the other hand, had no hesitation. What Levi says is sacred.

And what's more, he boasts a lot that he is Leviathan's closest subject. Not like he was better than anyone. He's just happy, genuinely happy.

Another thing, his behavior towards other nobles. He complains about them all a lot. Nothing particularly bad, but he complains about little things and it reminds me of that teenage attitude "look, I'm younger and I act more mature than you". Especially when he admonished them in CH5. It was just so cute.

Plus, he's curious. Very. Too much. Foras, did you really have to taste- well, we all know what this silly man did in sub story. Yes, I know it was "to check if the white liquid was not poisonous", but come on. This sounds like a cheap excuse. He saw it being made. He is a devil. Can't he put two and two together? Please.

Additionally, his shyness and insecurities. Of course, he's as eager for sex as any devil. But although Leviathan himself envies his horns, he asks us if they are really so nice.

Okay, at the end he was smooth as fu- Yes my princess yes I do I want gimme this beautiful horns

Of course, as a devil from Hades, he can doubt. No one has ever said a bad word about his invisibility, but they still doubt himself.

Shy bby i love you

Generally speaking, apart from Leviathan, we are the only people Foras comes to and he is obviously happy. In his scene when he comes to apologize to us at the very end, he is really polite. I've already compared it here to Sitri. Instead of on the lips, he kissed us on the hand. Cute. I will just add that his entire behavior towards us is charming.

Seeing all this, I feel like his attitude is a little immature, but in a good way. He wants to be serious, he tries, but sometimes enthusiasm comes out of him.

And this whole train of thoughts came to me only because I thought it would be funny if Foras was the last to appear at Levi's court and was immediately promoted to his right-hand man because of what a fanboy he is.

Paradise Lost is the Safest Kingdom in Hell and That's Absolutely Terrifying

After playing The Two Stars that Fell From the Sky event, I have come to the conclusion that Paradise Lost must be the safest kingdom in Hell. That is amazing as it is virtually untouchable, but it is also completely and utterly terrifying.

We all know that Paradise Lost is home to the healers who can treat seemingly any injury or ailment, but with the introduction of Gamigin we know that also includes death.

Make no mistake. Marbas, Morax, and Buer were dead. They died at the hands of the angels that were attacking them, but Gamigin was able to bring them back. In Paradise Lost, death is practically if not completely non-existent. The devils of Paradise Lost have no fear of death, so they are willing and able to take actions that endanger themselves with a relaxed nature.

When these events happened, they were listening to Lucifer recall the tale of how he became a devil. They were already injured and being attacked, but they did nothing to protect themselves or defeat the angels because they deemed Lucifer's tale more important, despite the fact that they were actively dying.

Lucifer and Gamigin seem to also have this mindset, since Lucifer doesn't have much of a reaction to his nobles dying other than realizing he's been talking for too long and they all need to go home. He knows Gamigin will heal them and Gamigin knows he can bring them back.

And once the nobles are up and operational again, they are a force to be reckoned with in a way that other kingdoms cannot compare. Because they are all healers, they are able to heal one another while also fighting. They are an impenetrable, undeafeatable force when they want to be.

Paradise Lost has no sense of death or fear of death. They don't seem to even fear getting hurt. The way they think of and address one of the most universal aspects of existence is... terrifying. I don't have the proper words to describe how eerie it is that they don't see death as an issue.

That's before you also take into account that Paradise Lost itself is impenetrable due to Lucifer's command. All those that try to cross into Paradise Lost will die because Lucifer ordered it so.

This make Paradise Lost the only kingdom we know of that angels cannot enter. Add on the fact that everyone is healing every injury, and Paradise Lost really is the safest kingdom, completely separated from the tragedies of war or the consequences of living within it's walls.

It's a land separated from 'existence' so to speak. Truly terrifying.

Leviathan’s Curse

As I played chapter 5, especially toward the end when you get the flashback to his childhood, I couldn't help put pay attention to the game showing us the curse laid upon Leviathan that explains his actions far too perfectly. Now, I don't mean a literal curse (although his beauty seems to be its own curse given how the angels treated him because of it). I am talking about the metaphorical curse placed upon him from the moment he was taken by Heaven. More specifically, the moment he escaped to Hell.

Spoilers for chapter 5 below

87 was his number. Not a name, but a number. He knew nothing of Hell or other devils aside from the other children trapped around him. His only experience in life -- at least the experience he could remember-- was the cruelty of angels toward him and his friends/peers. These were his only friends and the people who supported one another through an experience worse than death as the angels experimented on them.

Then, one day, when a fire starts in the lab keeping these young angels captive, 87 gets the opportunity to escape... or rather, he is forced to escape because the other children trapped with him can tell he is special and they are doing all they can to get him out of there and make sure Leviathan survives.

They will not allow him to stay with them and risk dying. He is the one person who must live, even at the cost of everything else.

As he is leaving, they all request that he go out and live for all of them; to have the kind of life they know they never can.

That's his curse.

It was the innocent wish of children who knew they were about to die and was partially said to try and motivate 87 to leave like they wanted and give him the will to live, but it is burned into Leviathan’s mind even now.

They were all one another had -- children relying on one another to survive -- and they died for Leviathan. They sacrificed themselves, refusing to let him stay behind to help them the way he wanted or escape with him because they had to ensure he got out at the cost of everyone else. In order to uphold their memory, he has to fulfill their wish to live on for them.

His life is also their life. His experiences are their experiences. He has to live the best life vicariously for them because that was the wish they made and is his last memory of the most important people in his life. Everything he is must be the best, because the people that died for him deserve the best. He is the best because he is their living memory.

We could also say it's the reason he is so stringent in his values of eliminating any threat to Hell, no matter how small or improbable. His friends died for him in order to get him back to Hell, so he will ensure that it is safe no matter what. He will not let their sacrifice be in vain.

In his Bloodshed card, we also see that Leviathan keeps empty [symbolic] graves for his dead friends. However, when these graves are destroyed, he says that the graves are empty and it doesn't matter if they are destroyed because he can always rebuild them later. But the graves to him are a form of atonement. The graves don't matter because Leviathan is their true grave and living memory. He is the one that lives for them. He made a kingdom for them; one that would have accepted them if they had been born there. He visits their graves every year. They are mythologized through him and their memory lives on as long as he does.

[Unfortunately, I have hit the Tumblr image limit as I am typing this section up, so I can't fit the screenshots, so you will have to decide if you trust me or not on this point]

On a more personal interpretation, I also think that this is why Leviathan wants neither "twisted hatred" nor "unconditional worship". He has known both. Hatred hurt him and made his life worse than death, worship got his friends killed (remember that they willingly died because they could sense he was special. In a way, he was already their king and they worshiped him).

He wants a partner who expresses something more pure than unreasonable, unexplainable emotions. He wants someone to express genuine feelings towards him rather than irrational ones that seem to control their view of him.

I think it's also the reason that he is annoyed at Morax at the end of his bloodshed card; Morax is willing to die for Leviathan in order to heal him. Leviathan has already seen enough of people dying for him.

I also think it makes it very interesting that his citizens wear nooses. They say they wear them because, on a literal note, they will hang themselves if Leviathan should ever die and, as symbol, that same noose is meant to show that there is someone (+Leviathan) they are willing to fight to the death for. The mythology surrounding his escape is so prevalent that it seeps into the entire culture of his land and its people.

He doesn't want people to die for him, but every single citizen of his kingdom is willing to die in his name. It puts him in a position where his life is the center of everyone who he meets. His Bloodshed Victory (2) line is "As long as the devils of Hades are behind me, I never lose" because he cannot afford to allow more people to die in his name. They can die, of course, just never for him.

Things about Lucifer victory story

I'm a little late on this and since you already know what happens in the story I thought I would share little things that I found funny!

First off,

Are we going to forget the fact that Bimet basically drops Abaddon Lore on the fact that half of that place is a prison.

What are the Abaddon Devil's shifts?

Are there prison guards???

It really is horny jail.

I am terrified

Other than that I'm not going to lie I really enjoyed this side story.

We got to see The advisors of the respective Kings and how they deal with events.

Hell has its own Olympic games. Can't say I'm really surprised.

The fact that the advisors knew and even liked the idea to use you because they know their kings would actually want to go to something they planned if you were involved.

I like their little dynamic of let's get shit done I wish I can see them more often.

They definitely go drink together lol.

My favorite part of this story of course is how the other devils from other countries interacted with each other It was very cute to see Marbas scream at the top of his lungs well Sitri looks at him with wide eyes.

Those are just the little things I've noticed since people talk about the actual race and not what goes on in the background. :)

As much as I adore the Kings my favorite part is to see the other devils interact with each other.

Leviathan's Birthday is not His Real Birthday

So PrettyBusy did announce the exact birthdays of the first four kings. However, due to his backstory, I believe Levi's birthday, being November 1st, is not his real birthday, but he chose it himself and I believe there are reasons why this day was chosen.

C/W: spoilers of Chapter 5 of the main story, Levi Bath and Levi Bloodshed stories, abused and unhappy childhood of major character

Firstly, Levi doesn't know the date of his birth.

As far as Levi could remember, he was raised by the angels, abused and experimented on. As his enemies and kidnappers, I don't think the angels cared enough to learn about a devil baby's birthday. And because Levi was raised by angels since as far as he could remember, Levi couldn't have known his birthday by himself and there was no one who could tell him the date of his birth. Hell, he didn't even have a name for himself back then, much less remembering his own birthday.

After years of living miserably, Levi managed to escape, but not without the sacrifice of four other devils who was close to him in the farm. To say it lightly, he is grateful to them. To put it more bluntly, he owes them his life. Without their sacrifices, there might be no Leviathan, the most great, most noble and most beautiful king of Hades.

Secondly, the celebration of Halloween in Hell.

Different from how it's usually celebrated on Earth, Halloween in Hell is day of the dead. It's the day they commemorate those devils who have fallen. Levi also pays his respect to his friends at their empty tombs on this day every year.

As a king, Leviathan has to have a day dedicated to him for the people to celebrate, even though he may find it unnecessary. Usually the birthday of the monarch will be chosen for this celebration, and since Levi didn't have one, he had to think of one, to the insistence of his nobles, ministers and advisers. Levi remembered the friends who had sacrificed themselves for him. Without them, there would be no King Leviathan. And since Halloween is the day of the dead when he remembers them every year, he ultimately settled for November 1st, the day right after Halloween.

Every year, on Halloween, Leviathan pays respect to his friends, thanks to whom he managed to escape Heaven. Only after the day of commemorating his friends do Leviathan and his people celebrate his birthday. The birthday must come after remembering who made its celebration possible, always.

...

This theory I got after remembering a real story, where a king ordered that the death anniversary of the friend who had sacrificed for him had to precede his own death anniversary.