#oc hali mortimer
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Living with them
Plot: How life is like living in the same house as them
Cw:None that I know of
A/N: Holy shit I'm sick and needed to pump this one out
Word count: 2.2k
Freida Köinig
• Once everything is settled and she has graduated from the royal academy, she orders for a new residential wing to be constructed adjacent to hers where the royal tutor will live out the rest of their life.
• She is constantly inviting herself over to their wing to just spend time with them. Eating pastries, drinking tea, and doing embroidery etc.
• She also enjoys dragging them outside and just walking around the palace as she rambles on and on.
Beta Köinig
• After he graduates, he buys a large apartment in the capital for him and [Name] to live in. It's on the top floor of the building and is quite cute.
• He spends most of his days either staying in his study, working on his books, or being busy being forced to go to royal balls and banquets (to which he makes [Name] be his plus one)
• He also goes out a lot to buy his darling anything and everything they could ever want. Whether that is furniture, books, food, clothes, or literally anything. He is willing to set aside his social anxiety to make sure his darling doesn't leave the apartment.
Hali Mortimer
• Hali spends most of her time swimming in the courtyard's pond with her new pair of legs. She also enjoys running laps around the mansion where [Name] lives.
• Since [Name] is a wealthy doctor, they usually spend their time inside treating patients in the on-site infirmary they have in their home, which causes Hali to have a vehement hate towards the patients.
• She also likes dressing herself up in [Name]'s dead mother and sister's jewelry. She spins around happily, showing off how the long string of pearls clack against each other while trying to garner praise from [Name].
Pan
• Pan uses his magic to create a cute little cabin in a grove in the forest far away from mother nature's control where he and [Name] can live.
• He also uses his magic to amplify the growth and taste of vegetables in the small vegetable garden in the back of the cabin, which let's [Name] make the most delicious soup and stew ever. However, he does make [Name] become vegan as he sobs loudly whenever they even bring home a dead rabbit to eat
• Also, he's a big cuddler. Sitting on the couch and reading? He's on your lap, nuzzling into your chest. Cooking by the fireplace? He's latched onto your thigh as you stir the pot. He's just a little cutiepie who wants praise for helping you.
02/05/2025 12:40
#kokowrites#gn!reader#kokoyandere#kokooriginals#oc frieda köinig#oc beta köinig#oc hali mortimer#oc pan#yandere crown princess#yandere crown princess x reader#yandere prince#yandere prince x reader#yandere siren#yandere half siren#yandere siren x reader#yandere child#platonic yandere#yandere nature spirit#fluff
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Savior
Plot: A half-blooded siren had been caught by pirates and had been put on auction for the rich and affluent to get a chance to buy. Luckily, a kind-hearted noble saves the poor girl from the auction and takes them into their care. Once she had been healed up, the noble tried to release her back into the water, only for the half-siren to beg her buyer to never let her go.
Cw: Kidnapping, live trafficking, yandere half-siren x reader, yandere oc x reader, light gore.
A/N: YAYAAYA I FINALLY FINSIHED MY THIRD YANDERE
Word count : 3.6k
The ocean was much more violent than usual. The waves and currents swayed much more aggressively than a couple hours ago. The sky above the water-line was dark and shadowy, with raindrops the size of bullets falling from the thick and sad looking cloud.
The pods of ocean dwelling creatures scurried away from the layer of water that separated them from the aggressive current.
However, there was a singular exception.
Hali Mortimer.
Hali was what others called 'half-bred.' She couldn't belong to any pod since she wasn't fully bred like her younger siblings. She was the result of inter-spiecies relationship between a lustful human male and a deceived siren who fell in love with him. When the poor siren found out about his decietfulness, she cried and cried while tearing apart his body in the depths of the ocean. Hali was the embodiment of the poor siren's first love and betrayal.
So for almost her entire life, she had been neglected and forgotten by her mother and step-father in favor of loving and doting on her younger half siblings.
The lovechild was almost identical to her human parent. Same dark skin, same patch of lighter skin under her left eye, same emerald sky blue eyes. It infuriated her mother. The only thing that strayed her from her father was the large blue fish tail and her hair, that seemed to be made of condensed water.
Hali swam nearer and nearer the surface of the ocean. She had just been berated by her mother once again that day for reasons that she can't even remember. Tears were streaming down her face and floating around her, almost as if trying to mock her.
When her head came to the surface of the ocean, she was immediately beat down by the rain, almost trying to push her down back into the water. Hali resisted and quickly began to a small island she had spotted in the perfible of her left eye.
She used all of her upper arm strength to pull her heavy fishtail onto the sand of the small island. She began panting heavily from the ache in her arms from all of the strength she had just used. Hali was able to pull her heavy body away from the water and was now able to lay down on the sopping wet sand while she caught her breath. The end of her fail flicked water inconsistently as she was able to finally be left alone with her thoughts.
After what seemed to be a couple of minutes, a loudly rustling sound made Hali sit up in fright. She whipped her head around, trying to see who was watching her, but before she could get a good look, a thick, meaty hand had wrapped around her mouth, covering up her screams.
"Damn, we caught a pretty one didn't we fellas?" loudly grumbled the man. A few softer more scrawnier sounding voices agreed with the first man.
"Let's get ya to the boss lady before we do somethin' we ain't loud to do..." he continued on. Two other men came and picked Hali up underneath her armpits and her tail. Try as she might, but Hali was trapped.
Someone had come behind her with a sweat-soaked sock and stuffed it into her razor sharp teeth lined mouth.
The men carried her to a flat area of land with blue and white striped tents. There were other gruff looking men running around from tent-to-tent, doing whatever Hali didn't care enough about.
They carried her to larger than average tent. In there stood a middle-aged woman wearing a traveller-esque outfit.
"Boss lady, we found somethin' real good!" announced Garil as he dropped Hali on the hard ground.
The woman turned around to see what the gruff man was talking about. She looks down and locks eyes with the half-siren.
"She is pretty indeed. Good job Garil." Said the female leader. She had strands of sliver sliding through her black hair and deep set circles under eyes. She grabbed the girl's cheeks and pushed it side-to-side, inspecting her. "But she does have that ugly patch under eye. Hopefully she'll still sell well." She mutters softly to supposedly herself, but Hali still caught her words.
Her veins felt as if ice was flowing through it almost instantly. 'Sell'? What the hell do they mean by 'sell'?
"Let her stay under the docks until we reach the harbour. Two meals a day to keep her alive." she ordered before walking off to a different tent on the island.
Garil and the two other men came back and began hauling Hali to a large, pirate looking ship. They then threw her into the large area underneath the ship. They threw her so hard that her fin got stabbed by a stray piece of metal from the rim of a barrel.
As Hali screamed from the spike of pain through her body, blood sprayed out and had already began to pool on the wooden floor.
Shakingly, she tries bring her hands to the wound to try and stop the bleeding. She groans from the pain and achingly throws her head out and screams in pain. Tears begin to brim the edge of her eyes and start to stream down her flushed face. It felt as if she was beginning hyperventilate, as she began to huff and puff. Soon enough, her body slumped to her side and she passed out from the sheer pain.
The trapdoor that lead to the underside of the dock slammed open. Light cleared in harshly, blinding the half-siren. She covered her eyes with her tanned arm as she squinted, trying to see who was approaching her.
It was Garil.
He approached her steadily, with a thick piece of cloth in his hand. When Hali spotted it, she began flailing, but stopped once pain shot though her entire body, making her hiss loudly from the sensation. Garil ignored her and took the opportunity to stick the fabric into her razor lined mouth and hauled her, including the iron lining that was still pierced through her tail, over his shoulder, making her hiss from the pressure placed onto the wound.
She was carried out from under the dock and onto the large harbor. Sailors from who-knows-where were running from place-to-place. Hali would have found it a fascinating sight if she wasn't in the predicament she was currently in. Hali was then thrown into a wooden crate, with no food or water, and was then nailed shut, effectively trapping her in the dark.
At this point, Hali was so weak and tired, she didn't even try to escape. She couldn't even try to heal herself from the serious injury she was experiencing. She knew that if she was to pull the metal lining out, she would effectively die from either blood loss or shock.
After what felt like hours, the lid to her crate was opened, dim light flooded her eyes and a mask face greeted her. "What a beaut'. Too bad she's gonna die soon." The person said to second person in the room.
"Then fix her. We can't auction off damaged goods." Said the second voice.
Soon, two different people picked her up under her armpits and the bent side of her fishtail. Her skin had become paler than before, looking sickly. Large pieces of her skin had begun to flake off her shoulders and upper chest area.
"Bring a large water tank for her." Ordered the second voice, making their croonies run out the room to fulfill their order.
The second voice lifted Hali up on a large medical table and turned too-bright lights. She squeezed her eyes shut to protect the already damaged irises.
"This'll knock you out for a bit sweetie." Said the second voice.
They dabbed a thick piece of cloth with some kind of liquid and then placed the cloth over Hali's mouth and nose. Soon after, the half-siren fell asleep.
When she awoke, Hali found herself in a large tank of water. She whipped her head left and right, trying to quickly assess where she was, but everything was dark, making Hali begin to feel claustrophobic. Suddenly, she remembered her injury and quickly reached out to where it was supposed to be. But when she touched her tail, there was nothing but a thin scar left behind. There was no pain. Hali was understandably terrified as to what was going on. All she could remember was falling asleep with bright lights flooding her eyes and a soft, almost gentle voice coaxing her to accept them. That's all.
Abruptly, a loud voice of a man punched into her webbed ears.
"And for the last item of the night, I present to all, ladies and gentlemen, a half person from the depths of the ocean! A creature who sings melodies on the ocean rocks and lures Sailors to their inevitable doom! A half-siren!" The voice announces.
The darkness is taken away from Hali and stage lights flashed through her water tank making her spin around to see the where the source came from, only to be met with the gasping faces of thousands of oddly dressed humans, all wearing masquerade masks covering the top half of their faces.
An instant scared expression spread onto her face as she whipped her head again, from left to right.
"We shall begin her bid at 10 000 krillins!" Continued the male voice.
Instantly, screams of numbers going higher and higher slammed into Hali's ears. This was an auction. Hali used to atrend small auctions in her home, but all they sould was differently coloured shells and items found in ship wrecks.
Soon enough, a loud voice echoed through the area, screaming, "ONE MILLION!" This made everyone in the audience gasp. They turned their head to the source of the voice. It was an old fat man, who was loosing hair from the top of his head. Hali was irked and made a disgusted face, with earned a couple of giggles from the audience.
Then the auctioner's voice echoes in the now whispering audience, " We have just received a silent bet of 2 billion. Do we have anymore bets?" Immediately, the audience goes completely silent.
"Going once. Going twice. Sold to the 2 billion bet." and with that, a gavel was slammed at Hali was wheeled off the stage and was placed in a brightly lit corner.
After a few minutes, someone with a hare mask walked up to Hali's tank and pulled their mask off to get a better look at her.
"Hello there sweetie. Pleasure to see you again." greeted the person. Wait. It was the same voice as the person who healed her.
Hali sputtered, "You-" and she immediately began coughing aggressively from how unused her voice was.
"Don't worry. I'll be letting you stay with me until you're all better. Then I'm gonna let you go free." they explained.
Hali was absolutely stunned to silence. A soft flutter in her heart began. She was being let free? Really? Is this an actual dream? Holy shit!
Quickly, a wide smile spread on the girl's face from happiness. A soft grin was on her buyer's face from the sight of the happy half-siren.
"We'll be leaving soon, so try to get as much sleep as you can sweetie. It's gonna be while until you'll be able to swim freely." they explain.
Hali took in their words and nodded at their words. As soon as they walked off, Hali floated in the small water tank and closed her eyes to fall asleep as quick as she can.
When Hali finally awoke from her quickened sleep, she found herself in a large, aquarium sized tank of water. She was laying comfortably against the sand covered floor of the tank, obviously trying to replicate the ocean floor.
Hali looked up to see a large fluorescent light shining down on her tank.
"Good morning sweetie. Did you know that you sleep like a rock?" said the voice of her buyer.
Hali quickly swam towards the direction of the voice, only to be met with a nicely dressed human. They were wearing a white poet blouse and black pants and knee high black boots. The human smiled at the approaching half-siren.
"When will I be going home? I really wanna go ho-" the girl stopped when the human placed their hand up. Even Hali, who had spent her entire life in the ocean, knew that it meant to quiet down.
"I will return you home once you have fully healed from your injury." explains the human.
Hali immediately deflates from their words. But the human continues to speak, "But I will be here to continuously apply medicine to your wound. So you'll be able to leave in about two weeks."
Alright, she definitely felt better from their words. The human walked to the side of the tank and climbed up the set of stairs thst was set next to the tank.
"Come here, I'm going to take you to a more open area for you too swim." explains the human as they spread their arms out for Hali to hold on to.
The half-siren swam to the edge of the tank and stuck her head out, looking suspiciously at the human. She then reached her webbed hands out and dug her long nails into the human's shoulders. Apparently they didn't mind as they wrapped their arms around her waist and pulled her out of the tank, making water spill all over the marble flooring.
The human cautiously carried the half-siren down the set of stairs, making sure not to slip and fall. "I'm curious sweetie, what is your real name?" asked the human as they looked up at the half-siren.
She looked suspiciously at the human as the end of her fishtail flicked up in annoyance, similar to a cat's tail.
"You tell me yours first." She retorts
"[Name] [Lastname]."
"Sounds stupid."
"Alright then."
The two were silent for a while as [Name] carried them through the long, winding hallways.
Hali layed her head on the human's shoulder, starting to become a bit tired
She nuzzles her face into the crook of [Name]'s neck and shoulder.
Hali mumbled out, "I'm Hali Mortimer."
"'Scuse me?"
"Hali, it's my name."
"Pretty..." muttered the human, making Hali's face begin to feel hot to the touch. She grumbled something before placing her face back into it's original spot.
Soon enough, the pair came to open aired area, where a large pool of water sat. It had beautiful decorations lining the edges, such as boulders, greenery and rubble.
The human squat down with the half-siren in their arms and then proceeded to let her flop out of their arms and into the fresh water. Hali immediately began to swim laps around the pool, stretching out the muscles and tail she could barely use for the past several days.
The human looked fondly at the half-siren and took off their shoes to lightly splash their feet in the water. Hali noticed and quickly swam over towards [Name]'s legs. She then propped herself up on the human's thighs and rested her head on her crossed arms. The human looked down at her with a gentle smile of their face.
"Why don't you join me?" questions Hali while she dug up some old food that was stuck in between her sharp teeth.
"I don't know how to swim sweetie. Sorry..." they explained.
Hali's face morphed into something that looked like mortification. "How the hell do you not know how to swim? Shouldn't it be, like, a necessary thing to know?!" She yelled out in shock.
[Name] mearly smiled at the half-siren's enthusiasm. "Well, there was no need nor want to. I've been sickly for most of my childhood, so most of my days were spent inside my bedroom all by myself, while my parents would take my younger siblings out to balls and galas galore." They explained with a hint of nostalgia in their voice.
Hali's eyes widened. Holy shit. That sounded kinda similar to what she was going through!
"That sounds kinda similar to me. My mama doesn't really like me because my dad had lied to her about 'truly' loving her."
"But why would she blame that on you?"
"Because I look like him..."
"That's absolute bullshit sweetie. You had no choice on whether or not you wanted to be born from a liar. You're mother is most likely emotionally immature to not realise that she can't pin the blame on a person who is not to blame."
Hali was stunned. No one had ever really had a take on what her situation was. Every one of her relatives would put the blame in her whenever the topic of her mother's ex came up, as if she was to blame for her father being a liar.
Hali nuzzled her face into the human's stomach, and creating extremely loud purrs. The human smiled as they softly pet her wet hair.
Two weeks went by in a sort of haze. Everyday consisted of [Name] applying Hali's medicine on her wound, Hali talking about life under the sea, Hali swimming, [Name] giving Hali different types of human food, and Hali absolutely loving the human food.
[Name] was sitting at the pool without their shoes and socks off, which Hali found odd. They called Hali to come closer to them, and once she did, the human grabbed under Hali's armpits and hoisted her out of the water.
"Where are you taking me [Name]? Aree we going somewhere?" asked Hali as she wrapped her arms around the human's neck.
[Name] nodded with their usual smile.
"Did you forget? It's time for you to go home Hali." the human explained.
Oh.
So that's what this was about? Alright....
Hali muttered, "Oh, okay then..."
The human looked up at her in surprise. "Aren't you excited to be able to go home?"
"Not really..."
"Why not?"
"I dunno."
"..."
The pair where plunged into silence as the two exited the building where they were staying and onto the beach that right outside their doorstep.
[Name] [Lastname] was definitely rich.
The sand clung onto the human's shoes as they got closer and closer to the waterline.
There was a head sticking out of the water, obviously staring down on the pair, which Hali had noticed.
"Who is that?" whispered Hali.
"I'm not sure..."
Abruptly, the head began to scream, making the human drop Hali on the ground to try and cover their ears. Hali scrambled to go to their side and try and comfort them. The head that was in the water was definitely a siren.
Hali looked back at the water to see who was the screaming siren, when her face paled.
It was her mother.
Her mother was screaming at the top of her lungs at Hali, trying to get Hali back in the water.
Suddnely, Hali yelled at the top of her voice, "STOP FUCKING SCREAMING YOU BITCH!"
The screaming stopped immediately. Soon enough, [Name] was back on their feet and carrying Hali back into the water.
"[Namenamenamename], pleasepleaseplease don't leave me with her. I don't want to leave not after what she did to you, please let me stay with you." The half-siren begged, grappling onto the human's neck to try and slow them down.
"I can't keep you with me forever. If you don't want to live with your mother, then just live as a rogue away from her." reasoned [Name].
"No I can't, I can't fucking stand being in the water. Not when you're not with me. Please, fuck, just let me stay with you [Name]."
"I can't sweetie, it's best you stay where you are for your best chance of survival.."
The human was able to place Hali into the water before beginning to walk away from the shore line. Hali began crying, reaching out for the human, trying to grab onto their fleeting image.
"Hali, I know we haven't gotten along this whole time. But trust me when I say thet humans are no good. You shouldn't fall in love with a human Hali." explained Hali's mother with an almost gentle tone. It was almost as if she was trying to sympathise with her. With just mad the half siren even more angry.
Hali ignored her mother's words and used her arms to crawl onto the sand into the direction that the human was taking.
"Hai don't!" screamed her mother, but the half-siren persisted, she kept crawling.
A loud ripping sound echoed throughout the beach, making [Name] turn their head around into the direction of the sound. The sight that met their eyes were astonishing.
Hali's large, blue fishtail had been ripped in two. Long skinny legs emerged from the loose carcas of the now flimsy fishtail. Hali tried standing on her newly acquired legs but fell to her knees from how weak they were.
The human quickly rushed towards Hali's side, holding their arms out for the half-siren to latch on to. Hali dug her sharpened nails into the human's forearm.
"You can't leave me alone [Name]! You can't leave me! Please don't leave me [Name]!" cried Hali as large crocodile tears ran down her dark face.
She began to hiccup and shoved her head into the human's chest, making their shirt stained from her tears.
"You saved me! You can't leave me alone [Name]! You just can't! You're my savior!" she screamed.
[Name] had a concerned look on their face. "Hali.... please...." they pleaded.
Hali let out a loud sob. "No! Stop it! You can't leave me!" Hali wrapped her arms around the human's neck.
As she sobbed her heart out in the human's chest, [Name] looked down at the half-siren with a dazed look on their face.
Looks like there was almost nothing they could do.
Posted on: 20 / 09 / 2024
#Hali Mortimer#Hali x reader#Hali Mortimer x reader#Yandere x reader#yandere oc#Yandere siren x reader#Yandere half-siren x reader#kokoyandere#kokowrites#oc hali mortimer
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Physical appearance
-> Hali has dark skin, with light blue and white scales covering her lower arms and hands. There are also large patches of scales that cover her breast area, but she does still have breasts. The scales just cover them
-> Her fishtail is the same blue colour as the scales covering her arms and breasts and is about 1.5m long
-> She has particularly long asf as arms, which came in handy when she was little, and her mother wouldn't hunt for her
-> She has a patch of lighter skin under her left eye
-> Hali has the most beautiful light blue coloured eyes anyone would ever see.
Here are some references I found from pinterest:




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I think since now I have released almost all four of my yanderes, I am going to probably write NSFW and SFW alphabets for Freida, Beta, and Hali. Obviously, since Frieda and Beta are minors, they will be aged up for the NSFW alphabets, but since Hali is the same age as the reader and the reader is an adult, I won't have to age her up.
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Escape artist reader
Plot: Yanderes with an escape artist reader
Cw: mention of tears, snot and drool
A/N: Nothing :P
Word count: 1.3k
Freida Köinig
She's constantly on edge. No matter how high she makes the walls of the Imperial palace, no matter how many guards she makes stick to [Name], it seems they always escape. But don't worry! She will always find them! No matter how many times they seem to escape, she will always catch them.
Beta Köinig
He's a crybaby. Tears snot and drool are all running down his face. He writes to his sister to find the bastard who kidnapped his darling! Because he has completely convinced himself that his darling did not run away. No, no! They were obviously kidnapped by a rival kingdom, of course! Once [Name] returns, he is oh so, so doting to them
Hali Mortimer
She pulls on a pair of pants and a shirt and will then wander around the outside world for who knows how long until she finally finds [Name]. Siren are able to latch themselves to their mate, and that is what she had done, so she basically uses her fantastic nose to find them. Once she does, she digs her claws into their forearm and will brag them back home to sit in the pond until their feet become pruny.
Pan
He is crying as well. Poor thing. He sucks up his child pride and will ask his mother, Mother Nature HERSELF, to get [Name] back home. Mother nature will then create several natural disasters that will throw [Name] of their track and back to the cabin they share with Pan. He will greet freshly baked cookies.
Posted on: 01/04/2025 21:42 pm
#kokoyandere#kokooriginals#yandere#yandere x reader#yandere princess#yandere crown princess#yandere princess x reader#yandere crown princess x reader#freida köinig oc#yandere prince#yandere prince x reader#beta köinig oc#yandere siren#yandere siren x reader#hali mortimer oc#yandere child#yandere nature spirit#platonic yandere#pan oc#fluff
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Hali Mortimer
Hali Mortimer was the result of a human-siren love affair, which ended with the killing of her human parent. She roamed the sea by herself until she was captured by sailors on a lone boat. She was then put on auction for all the nasty, black-hearted nobles to see. Luckily, the ever so empathetic [Name] saves her and tries to release her back into the ocean, only for Hali to return back over and over again.
Physical appearance:
Pinterest board:
=> Introduction
Savior
=>Rambles
=>Asks
=>Scenarios
Living with them
Shut-in reader
Escape artist reader
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