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2025-09-03
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2025-09-03
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3/?
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Impostor

Summary:

"Wait..." Mira muttered, her eyes narrowed as she stared at the pictures.

"What is it? What did you find?" Zoey asked, peering over Mira's shoulder before she froze.

The picture was old, taken by paparazzi when Rumi was still young. It was deemed edited by the public, and people were angry at the company and paparazzi that took the picture.

But it showed Celine snarling at the camera as she shielded a nervous toddler Rumi behind her, clutching Celine's leg sleeve.

But what was evident were the claws that Celine had, along with her sharp teeth and amber eyes.

"Holy shit like mother like daughter apparently. Miyeong fucked a demon and it's Celine."

Someone choked.

Celine is a human, the Honmoon gave her the gift to mimic demons.

The little bundle in her arms is a half-demon.

There are... slight misunderstandings as Rumi grows up.

(Not that Celine ever corrects it, Rumi is just too cute!)

Notes:

I RUSHED THE FUCKING FIRST CHAPTER DON'T LOOK AT ME. I DESPERATELY NEED A GOOD PARENT CELINE FIC OF MY OWN BECAUSE OF THE VARIOUS BAD PARENT CELINE FICS

YOU ALL DID THIS 🫵🫵🫵, WE NEED A GOOD PARENT NOT ONE THAT TORTURES HER CHILD???? WHY?? JESUS FUCKING CHRIST I DOB'T WANNA SEE CELINE BEING AN ABUSIVE PARENT WTF ESPECIALLY THE POLYTRIX FANFICS WHY IS SHE BAD MOST OF THE TIME GIVE MY DEPRESSED MILF A GOOD LIFE GOD DAMN😭😭😭

(See the end of the work for more notes.)

Chapter 1

Chapter Text

Celine is the Honmoon's favorite.

The girl was fierce, diligent, swift, and so much more to the point she was the leader of her group. But Celine's favorite was not the Honmoon, but her bandmates.

The Honmoon couldn't care about that. It coos at her when she takes care of her girls, and they take care of her too. It loves how protective she is towards them even when they're simply doing groceries.

It loves the fact that she cares for her bandmates and the fans.

But it could feel the hesitance in her mind, sense the slight fear.

What if I'm too slow to help them? She asked herself.

What if I'm not there? Poppy is faster than me, not that I mind, but she's as reckless as her swiftness, what if I couldn't reach her?

What if I couldn't hear a demon sneaking up on Mi-yeong?

The Honmoon worried for Celine, always being paranoid.

Celine is the Honmoon's favorite.

It grabs a small bit of its powers, not exactly enough to weaken it, but enough to make it do something.

The Honmoon gives Celine a gift—

Mimicry.

It started small for Celine, as everything started out as— or almost everything, probably.

It actually made her stressed the fuck out when all of a sudden during midnight with no lights on, she could see clearly.

Very jarring considering she almost stepped on chips.

It started out small, in her opinion, in its opinion too. Its gift only affected her senses, made her more sensitive. She could hear farther, see better, even smell demons.

The demons, in her own opinion, smelled like sulfur and ash, like Poppy predicted if they could smell their scents if possible.

It helped. She could hear if the Honmoon had a small tear near them, or if a demon was behind them.

And then it started escalating. Her strength was better than before (her clothes were a bit tight now, explaining to Mi-yeong and Poppy why was very embarrassing), she was faster ("OH MY GOD—" "I am so sorry!"), and...

Her ears were slowly looking a bit more pointed, and her nails were becoming a bit sharper.

The more she fought demons, the more she could see become confused as they fought her. Fighting water demons? She has their gills. Faceless ones? She has their speed. Fire demons? You guessed it.

You are one of us. One snarled. You dare betray Gwi-Ma for two humans you've deemed your ma—?

But I am not one of you? She'd growl back in confusion before she'd kill them with her dual swords. More demons were confused as time went on, but they also became more fierce towards her, as if there was a challenge or she ticked them off in someway or another.

She did not bother asking what they thought she was.

Mi-Yeong and Poppy were becoming more nervous as they let her attack demons. They wanted her safe, but she wanted them safe, she would get so many wounds and would crawl out of hell itself just to keep them safe.

Oh, and her instincts? She almost mistook them for intrusive thoughts, really—

She wanted to fucking growl like an animal or weirdly rub her cheeks against them. What the fuck.

It was only during the time she finally met the demon that Mi-Yeong had been secretly meeting up that she had realized what the Honmoon and gifted her to become.

It was also one of the times she unsheathed her supposed-to-be-non-existent claws while looking at him.

She did not have patterns.

But she was acting like a demon and it scared her.

Celine is a human gifted to mimic demons.

The little bundle that she has to take care of is a half-demon and Celine has no idea how to care for a child, much less only half human.

But she tries. Kinda.

She has no fucking idea what she's doing.

The infant was on her chest, clutching her shirt with tiny claws, sleeping like a kitten and even purring. It was even more bizarre because Rumi didn't entirely look human— little claws, strange hoof-paw legs, a tail, and... eyes.

Her instincts told her two things, perhaps it's because of the Honmon's gift?

"..." Celine didn't speak, simply lightly patting the infant's head. She's so small. She thought. Are demons born this small? She's not premature.

She gently scratched Rumi's head carefully, the purring becoming slightly louder.

"Hm." She hummed, laying her head back on the pillow beneath her. Rumi is surprisingly quiet unlike her mother.

Her mind slowly drifted off to sleep, barely registering her own chest rumbling strangely and the Honmoon pulsing vibrantly.

She'll take care of the infant once she wakes up, but for now, she just wants to nap.

Chapter 2: WHY DO YOU RELAX WHEN EATING RAW MEAT???

Summary:

"Okay... this is fine. Apparently you like meat, but you are a cub—I mean baby, you... does a bottle of milk and meat work for you? Do demons need it raw???" Celine muttered, looking at the baby in her arms.

Rumi simply made a purring noise, clinging to Celine with her tiny claws as she stared at the meat, her six eyes wide with curiosity.

Celine sighed.

"Yeah, I don't know anymore." She mumbled, riping off a chunk of meat with her teeth.

Celine doesn't know how to care for a half-demon infant who's teething and wants meat and proceeds to stress the fuck out.

Notes:

Baby Rumi: *Gnawing on raw meat because teething and little fangs*

Celine, exhausted: *Rips the raw meat with her teeth and passes the smaller chunk to Rumi, and proceeds to eat the bigger chunk*

Baby Rumi: :O

(See the end of the chapter for more notes.)

Chapter Text

Poppy rose an eyebrow, a smirk on her lips. "Celine if you keep shoving the food down your throat, you might as well shove something el—"

"Poppy shu' uff I a' hungry an' I 'eed thish!" Celine exclaimed, swallowing a whole steak as Mi-yeong wheeze beside her, fist hitting the table as she tried to reign in her laughter.

Mi-yeong passed her beef to Celine's plate. "Just— just take it at this point, Cece, you might as well give yourself carnivore teeth with how much meat you kept eating."

Celine huffed as she rolled her eyes. She swallowed her food. "Good, it means I can bite the demons and give them a taste of their own medicine. I had to wear gloves for the damn bite they gave me, I hope if I gain sharp teeth it's better than theirs."

"Oo! Kinky! Bite us nex—"

"POPPY I SWEAR TO THE HONMOON—" Celine screeched and lunged at her, earning a squeal from her and joyous laughter from Mi-yeong, the Honmoon around them flickering in laughter.

She didn't want this to end.

They continued eating for a few more minutes, before Celine suddenly hissed and paused her eating.

Mi-yeong glanced at her. "Are you alright, jagiya?"

"I thi' I bif mah tongue."

Whatever Celine said about Rumi being quiet was a complete lie, she was louder than her mother and it's making the Honmoon shake.

She was also teething, apparently.

None of these books teach how to care for a half-demon! Celine thought, running towards Rumi's crib and grabbing the infant, patting her back and rocking her to sleep.

Was the baby hungry? She just fed the baby, what the fuck does it— SHIT.

Celine had almost bashed her head to the wall. It? It!? Is she insane!? No this is an infant that was from Mi-yeong! Their Her daughter! Poppy's dau niece!

And she accidentally calls the infant an it?

Rumi's cries were quieting down, but there was the occassional hiccup and whine.

She continued carrying Rumi, humming one of the songs her idol group used to sing. Rumi's little tail was wagging as the little demon started to purr, the hiccups and whine disappearing.

Celine let out a sigh, looking down at Rumi before she carefully walked towards the kitchen on the balls of her feet. She had been doing that a bit more lately at home, perhaps it was because Rumi immediately wakes up when hearing her footsteps, or simply because she's avoiding the items dropped onto the floor from sheer stress.

"Mmm." The baby squirmed in her grasp, trying to bite her finger, making Celine flinch as she walked.

"No, Rumi." Celine mumbled, booping the baby on the nose. "We do not eat fingers with your growing canine teeth why do you even have sharp fangs?" She hissed, her eyebrows furrowing as she pulled up Rumi's lips to see the little fangs better.

How in the Honmoon's powers did Mi-yeong even managed to fuck a demon? Human form? Demon form? What did he take and how the HELL did she handle it and gave birth to this little animal child?

Rumi's six eyes (She had so many close calls almost screaming and summoning her weapon at night) stared at her in curiosity. Celine had shifted her to her left arm as she used her right arm to open the fridge and take something out.

Rumi shivered at the cold temperature, hissing and whining, clinging closer to her eomma.

Celine immediately shut the door of the fridge close and placed the pack of meat onto the counter before she fully wrapped Rumi in a careful hug. "Shit— fuck— sorry, sorry. I do not know if demon babies are warm-blooded or cold-blooded, sorry Rumi."

The baby simply babbled.

The lil' shit is chomping on the raw meat she was supposed to eat for herself right after she washed it with running water.

"Mi-yeong... Mi-yeong is your daughter a carnivore. Do I have to keep buying raw meat for your child. Please I do not want to share my food." She dragged a hand across her face, sighing heavily, a low reverberating tone below her sigh.

Rumi wasn't... uh, one year old yet, and Celine has no idea what time should a normal baby stop eating those baby foods—but this one is only half-human, so that's also a problem.

Rumi was making trills and purrs as she gnawed on the raw meat given to her, not being able to eat it, but definitely relaxed now. Maybe her gums were hurting because of her growing fangs and needed to bite down? Teething is normal but does she need stronger teething toys?

Rumi looked at her in curiosity as she gnawed.

Celine's hand created a spark of starlight before grabbing the raw meat away from Rumi as carefully as she could. "One moment, Rumi." She spoke, before Rumi could cry, Celine chomped down on the meat and ripped it apart.

"...I'm taking the bigger size." She gave Rumi the smaller chunk, who happily squealed and gnawed on it again, her tail wagging in joy as Celine ate the bigger chunk.

Cooked meat is better than raw for me, but oh well, as long as Rumi doesn't create a tear in the Honmoon again. I'll just make it cooked. She thought, smoke coming out of her mouth for a second before it was gone.

(It did not taste good doing that. Raw meat was better than whatever charred parts she just tasted with the meat.)

She looked at Rumi again.

"...I'm going to need to give you better teething toys, don't I."

Looks like she has to tell her employees to give her the best of the best or else Rumi would'd chew wood or cables, preferably not cables, she's noy sure if a half-demon is immune to electrical shock.

Notes:

Celine stares at Rumi, confusion etched on her expression as the baby stared at her.

"...Did you just hiss at me?" Celine crouched down, an annoyed sharp-toothed grin on her exhausted face.

The baby hissed again, clutching the chunk of raw meat like a dragon with a hoard.

"Okay, your diet today is just pure mashed potato with no gravy."

I don't know why I created this. Also, tell me what you'd think they'd do in the future lmao, I'm just imagining Celine ripping something apart to help an employee, idk man, this ain't beta read and I am HEAVILY sleep deprived right now.

Chapter 3: "Why the FUCK does the child have weird eyes?"

Summary:

"What the fuck what the fuck what the fuck—" Celine wheezed, gripping the doorframe so hard it was cracking while her other hand gripped her chest.

Just after the opened the nursery door, she had almost summoned her ssang-geums before her instincts took over and instead created a starlight explosion on her palm because the baby glowing eyes were staring right at her in the nursery room.

With all six eyes. 

Baby Rumi's eyes scare the shit out of Celine.

Notes:

Someone euthanize me pls

(See the end of the chapter for more notes.)

Chapter Text

CLANG!

"Shit—!" Celine's ears twitched at the curse someone let out, her head swiveling to Mi-yeong's direction as she pierced a demon.

"What? Happened!?" Poppy shouted, swinging her battleaxe to a demon's head. The tear in the Honmoon was a big one, with all three of them needing to excuse themselves from their manager's eyes and sprint towards the danger immediately.

Mi-yeong ducked through a lunging demon. "A couple demons are the faceless ones! They're blending in with the shadows around us!"

THUK!

A hidden demon was stabbed right in the neck by one of Celine's ssang-geums, an amber glint in her eyes as she moved to another demon and does the same thing.

"I can see them very well though? Maybe your eyes haven't adjusted at the dim lights. We should train for that." Celine spoke, crouching as she stared at a water demon in the eyes. The demon had faltered just enough for Poppy to slice its back, turning it into dust.

Poppy looked at her in confusion as the last demon finally died. "Celine, there's no lights in this warehouse. We could barely see the silouettes of the faceless ones."

"Cece has NIGHTVISION!?" Mi-yeong exclaimed, dissipating her bow before cupping Celine's cheeks, tilting her head. "...It looks normal." She muttered, pouting.

"Maybe it looks normal because it's dark, so you can't see?" Celine spoke, although it was a bit slurred because Mi-yeong was grabbing her by the cheeks and forced her to lean down a bit.

"How many fingers am I holding up?" Poppy asked.

Celine glanced at her. "You're— hey! You're flipping me off!"

Rumi was going to be the death of her, she swears.

"What the fuck what the fuck what the fuck—" Celine wheezed, gripping the doorframe so hard it was cracking while her other hand gripped her chest.

Just after the opened the nursery door, she had almost summoned her ssang-geums before her instincts took over and instead created a starlight explosion on her palm because the baby glowing eyes were staring right at her in the nursery room.

With all six eyes. 

"Honmoon have mercy on my soul, Gwi-Ma won't even be able to take it from the shock.." Celine muttered, straightening her posture. The Honmoon flickered, as if laughing at her surprise as she walked towards the crib.

Rumi was sitting up with a slightly scared on her face, her little fangs out as her eyes blinked.

And then she started to whine.

"No. You will not cause another tear." Celine muttered, grabbing Rumi and carrying her close to her chest once again like before.

"One of these days I'll teach you how to shapeshift so you don't scare the soul out of me, Rumi." She muttered, adjusting her arms so Rumi would be more comfortable— yep, she can hear Rumi's purring now, it strangely vibrates her chest, but as long as she's not having a heart attack, she's fine.

Maybe.

She has no idea how strong her enhanced regeneration is and would rather test it on wounds and not heart attacks.

"Mi-yeong would've loved your eyes. Poppy would have taken pictures of your creepiness in the dark." She muttered, pressing a hesitant kiss to Rumi's forehead, who giggled and lightly headbutted her. Celine hummed. "Go to sleep, I haven't slept in a week from your screaming."

...

Wait. Are the lights even on?

Celine blinked as she looked around.

The... lights weren't on.

"Were you scared because you were alone, and not because it's dark?" Celine muttered, looking at Rumi, who was purring as her tail wagged, her tiny claws clinging onto Celine's shirt.

Tap tap tap tap tap tap.

She let out a strangled noise from her throat, wrapping her arms around her head as she sat on her chair, leaning on her desk.

Tap tap tap—

Okay, now the Honmoon was trying to wake her up even more.

Rrr? Celine moved her head to glare at the annoying blue thread tapping her shoulder.

She sighed. "Alright.. I'll go check on Rumi.." She mumbled, checking the baby camera she installed.

Lately, there had been more demon attacks. Ever since they died, Gwi-Ma kept sending more. Add the unpredictable attacks into her new CEO workload, along with her current predicament and she'll faint infront of a camera.

She blinked.

Her baby was awake, completely staring at the camera with her six eyes, unblinking.

Thump! Celine's face hit the desk.

God damn little small thing needing to be taken care of. The Honmoon should gift her better endurance and stamina and mental strength.

She groaned and wrapped her arms around her head in defeat. She hasn't slept and the damn cub baby is going to give her nightmares with her stare.

Notes:

Isn't Celine just polite? :)

Notes:

One misunderstanding that has various sub sections of said misunderstanding..

Anyway you guys can give me requests on what stuff I could put into this fic about Celine and Rumi. Example, Celine has claws and Rumi has claws, that must mean it's normal! (No Rumi it's not normal).