Kim Haerin

Kim Haerin

“	How could I say no to your face? You look just like my type	”
— Kim Haerin to Kibutsuji Muzan in Chapter 215

Kim Haerin (김해린, Kim Haerin) is a fan character for the Demon Slayer: Kimetsu no Yaiba series by Koyoharu Gotōge. She lives in the 21st century and is a teacher at Osaka International School, she meets Kibutsuji Muzan accidentally when she's working on her personal project for her color-changing potion. She's married to the Demon King and eventually chooses to follow her husband to become a demon herself.

Haerin was born in South Korea, Busan, and an only child. She continued her study in the US before she starts working as a teacher. She is a very intelligent individual. It is later revealed that her blood is the key to perfect the Kibutsuji Blood.

Haerin is a stunningly attractive 24-year-old woman with a gorgeous appearance that captivates everyone around her. With her small, slender figure, soft curves, and delicate facial features, she exudes a captivating presence that is impossible to ignore. Haerin has long, dark brown hair that falls in soft, wavy locks down to her shoulders, nearly reaching her waist. Her hair, which is almost black, shimmers in the light and accentuates her dark brown eyes. Her eyes are almond-shaped and deeply set, giving her a mysterious and captivating gaze.

Her lips are full and beautifully shaped, and two moles on her left cheek sit like tiny beauty marks near her upper lip, adding a charming touch to her already stunning features. The other mole is on her left cheek, just one inch above her delicate jawline. Her complexion is fair with healthy amount of color and smooth, with no visible blemishes or blemishes. Her facial features are also striking, with a round face and soft, delicate bone structure. Her cheekbones are high and prominent, giving her face a unique and elegant look.

Haerin is known for her fashion-forward style, always sporting the latest trends and embracing her unique sense of style. She enjoys wearing vibrantly colored outfits, such us: dress, short skirt with pretty tops, often incorporating bold patterns and eye-catching accessories to add interest and personality to her look. But when she's teaching, Haerin opts for a more subtle and professional style, choosing to wear a white shirt and a black skirt. This simple yet professional look showcases her confidence and authority as a teacher, while still allowing her to express her unique sense of style.

Haerin's fashion choices demonstrate her creative spirit and willingness to take risks, and her ability to balance these bold choices with a more reserved look for her teaching job shows that she is versatile and adaptable, and knows how to dress for the occasion.

In addition to her physical appearance, Haerin exudes an inner beauty and positive energy that radiates from within. Her kind, welcoming personality and warm, friendly demeanor make her a truly remarkable and captivating individual.

Demon Haerin's appearance is not much different with her human form; long dark brown hair with dark red eyes. Haerin's eyes are the exact replica of Muzan's demon eyes as they shared the same blood. Her complexion mimics his as well, giving a very pale fair skin which is a contrast to her dress; a red dress with gold accent on the chest, wrist and legs. She also has a pair of horn on top of her head, the same color with her dress and her nails.

Haerin is a complex and multifaceted individual, with numerous interests and personality traits that make her an incredibly fascinating person. Her introverted nature means that she greatly values her alone time, and she often needs time to recharge and reflect on her inner thoughts and feelings. She is often seen with her nose buried in a fantasy book, and she is also very passionate about reading in general. This love of reading has shaped her imagination and creativity, inspiring her in her hobby of creating color-changing potions for her small business. She has a unique and inquisitive mind, always looking for new challenges to test her skills and knowledge.

Despite her quiet and reserved demeanor, Haerin has a kind and compassionate nature, always looking out for others and offering a helping hand when needed. She is a loyal friend to those she cares about, and deeply values the relationships she has built over the years. Her love of fashion and experimentation has brought her close to her cousin, Hyoma, and their shared interests have helped to cement their bond. They often spend time discussing the latest fashions and trends, and Haerin is always willing to provide Hyoma with advice and feedback on his outfits.

As a result of her love of fantasy books and witchcrafty movies, Haerin also possesses a deep sense of curiosity and imagination. This is reflected in her experiments, which often incorporate a touch of magic and wonder, drawing on her creative abilities to produce stunning results. Overall, Haerin is a thoughtful, creative, and deeply interesting individual, with a diverse range of interests and personality traits that make her an unforgettable and unique character.

Overall Ability : As a human, Haerin is a highly intelligent and capable individual, often described as a genius among her peers. She possesses a sharp mind and exceptional cognitive abilities, allowing her to solve complex problems and understand advanced concepts quickly and efficiently. Haerin's intelligence is evident in her academic achievements, which include excelling in all of her classes and graduating at the top of her class. She also has a natural talent for experimentation and problem-solving, allowing her to quickly develop and refine her ideas, resulting in successful outcomes. One of Haerin's greatest achievements is her creation of a drug that helps Muzan to be able to earn energy and power from human food albeit eating human flesh directly. This required a deep understanding of both medicine and chemistry, and her ability to understand and synthesize these complex concepts allowed her to create a drug that was both successful and effective. Her intelligence also comes through in her ability to quickly adapt to new circumstances and situations. She is able to adjust to changing environments and work with a variety of people, both of which are valuable skills in her role as a researcher and scientist. Overall, Haerin's exceptional intelligence sets her apart as an individual who is able to excel in any field or pursuit that she sets her mind to. Her abilities are a result of her dedication, hard work, and natural talent, and the positive impact that she has already made in the world of science and medicine is a testament to her intellectual capabilities.

When turned demon, Haerin is the Demon Queen, it turns out her blood and DNA is an exact match and completes something missing in Muzan's blood when he drank the medicine from his old doctor in Heian era. Haerin's body is able to adapt with the changes as soon as the Demon King blood is inside of her body and her memories remain still, unlike most demon created by Muzan, Haerin is different. She is not under his control and her transformation also perfects the Demon King's abilities.

Haerin's demon body is unique because she does not need to consume human flesh and blood to survive. Unlike other demons who require human flesh and blood to survive, Haerin's body is able to digest normal food. This means that she can eat and enjoy a wide variety of foods, including dishes that most demons wouldn't even consider. Haerin's diet is more akin to that of a human than a demon, which has led to some interesting encounters with Muzan who is surprised to find out that she doesn't need to feed on humans to survive. Muzan himself needs Haerin's experiment in order for his body to be able to adapt to human's food, but when he drinks Haerin's blood his body heals and has the same ability resulting both of them to only eat normal foods.

Demon Blood Resistence: Haerin possessed a rare ability known as "Demon Blood Resistance." Unlike most humans, Haerin's body was able to protect itself from the influence of demon blood. This ability not only allowed her to resist the corrupive magic of demons but also made her immune to their demonic possession. When combined with Muzan's blood, hers still stay and not perished, meaning her blood and his are a perfect match. Despite being turned into a demon, she was able to retain all of her memories and her sense of self. Her will was so powerful that not even Muzan, the strongest and most powerful demon in existence, could control her. This made her an incredibly dangerous asset, who could take on any demon without fear of being corrupted or controlled. 

Demonic Consumption : With this ability, Haerin is able to absorb and mimic the powers and abilities of other demons. In the Demon Slayer universe, a demon is a creature with supernatural powers and abilities, created by a demon's blood. With this ability, Haerin is able to consume the blood of other demons, absorbing their powers and abilities for her own use. She is able to mimic their strength, speed, and even their unique abilities, such as elemental powers. This makes her an incredibly versatile fighter, able to adapt to any situation, and become a formidable opponent. However, her ability has its drawbacks. She must be careful not to absorb too much power at once, as it can overwhelm her body, and potentially cause her to lose control. Additionally, she must be cautious not to absorb the abilities of demons whose power is harmful to her, as this can cause her harm. Despite these drawbacks, Haerin has proven to be an incredibly powerful ally, able to stand up to even the most powerful demons without fear of being corrupted or controlled. She is a valuable asset in the fight however in the timeline she lives, no more fights are happening so Haerin rarely uses this ability.

Cloning: Haerin's ability to clone herself is called "Cloning Power". This ability allows her to create exact copies of herself, up to twenty at a time. The clones are identical to the original in terms of appearance, abilities, and personality. This ability can be used in various situations, such as combat or exploration, as the clones can operate independently and be in multiple places at once. Each clone retains the memories of the original and can pass them on to the next clone if needed. This ability is also limited to the places that Haerin knows and can only be activated if she physically touches the location where the clone will be created. The clones can also be used for a wide variety of tasks such as infiltration or surveillance, and can be created quickly and easily.

This ability is often used as a playful and amusing way to tease Muzan, the strongest and most powerful demon in existence which happens to be her husband. By creating multiple clones of herself, Haerin can confuse and overwhelm Muzan, providing her with a means of entertainment and amusement. The clones can be used to create all sorts of pranks and gags, providing Haerin with a way to entertain herself while also keeping Muzan on his toes.

Mind Control Smoke Blood Art: Haerin's power to create dark green smoke that allows her to control others is called "Mind Control Smoke". When the smoke hits its victim, it can take control of their body and make them do whatever she wants. This power is incredibly useful in combat, as it gives her the ability to incapacitate her opponents before they have a chance to fight back. The smoke itself is also very effective, as it quickly overwhelms and disorientates whoever is caught in it, making them easy targets for Haerin to control. With this ability, Haerin has the power to control her opponents and make them do whatever she wants, which can be a valuable asset in any situation.

Haerin never involes in any kind of fights and battles as in her current setting, she met Muzan when the only demon alive is Muzan and the Demon Slayer Corp is no longer operating since the last battle won by Muzan. In this universe, the original ending is altered and Muzan won the final battle.

• Haerin can't cook and it's been that way ever since she was a kid. She always buys food from restaurants or grocery stores.
• Haerin was an only child growing up, so she's used to being independent and being by herself. She's comfortable with being alone and even enjoys it at times.
• Haerin had a difficult time adjusting to life in the United States when she studied high school and college. She later decided to move to Japan and pursue a simpler life and is enjoying it there.
• Haerin loves steak and it's one of her favorite foods. However, she can't eat seafood due to an allergy.
• Haerin enjoys wearing cute dresses and loves to do her makeup and nail art. She's always trying out new nail designs and styles.
• Haerin never had a boyfriend before Muzan and has always been single. She's focused on her own goals and ambitions, and has no interest in romance at the moment.
• Before meeting Muzan, Haerin ran a small business that sells color-changing potions that she loves. However, after meeting Muzan, she spent most of her time in the lab helping him develop his drug, leading to the abandonment of her business.
• Haerin loves to take studio-photoshot with Muzan so she often drags him with her, resulting the demon to be angry but he would comply in the end.
• Despite her love of photoshooting, Haerin doesn't enjoy traveling, as she prefers to stay in one place. However, she will travel if Muzan asks her, as he loves to travel and enjoy new experiences.
• Haerin is not often sick, but when she is, she becomes extremely whiny and demanding. She expects Muzan to take care of her and pamper her, even if it means putting aside his own work. It's hard to say no to her, though, as she is so adorable in her misery.

• (To Kibutsuji Muzan) "I love you, Muzan. Even if I have to give up on heaven to spend time in hell with you."
• (To Kibutsuji Muzan) "To me, there is nothing matters in this world other than you and I'm willing to take all the possibilities. The good ones and even the bad ones if it means I get to be with you."
• (To Chigiri Hyoma) "I really like shopping with you! You always know the latest fashion trend~"
• (To Tokito Muichiro) "You are your own person too, just remember that. Your twin brother is not you, Muichiro. It's okay to think that way, your feelings are valid."

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