I do not own the characters of Black Butler or Demon Slayer. All rights go to their respective manga authors and anime adaptations to their studios.

Author's Note: After two weeks of hard work, I'm proud to say I'm staying true to my fan fic resolutions. I really hope you enjoy this next chapter of the demon slayer x black butler story! I made this chapter extra long with a dual pov, because I must stay true to my word and go finish other chapters for my other fics.

Please comment on your overall thoughts on the chapter, predictions of what will happen next, what characters do you want to see interacting and fav character so far!

Happy Reading :)

_

His Descendant; Successor Pt. 2

Èlaine Pov

"A young lady of Noble stature bows as they greet a Lord," was the first sentence my father has said to me in ten years. "And father."

I stood in the middle of the entryway, trying not to show how stunned I was. I should have expected it. This frigid and distant response. Yet, a part of me wished he'd be happy to see me. Joyous. Instead, he continued to hate me. Alexander, the middle child of us three, told me father still loved me. However, I was a painful reminder due to my resemblance of mother. No child of the Phantomhive household bore blackish red hair and dark red eyes. I'm the odd one out and constantly reminded of it. I don't want to be here.

Ah, but you promised Grandpa. The annoying voice in the back of my head singsonged.

"Didn't you not hear me, girl?" Father snapped. "Or has your time with that moronic grandfather of yours dampened your intellect?"

Oh hell no. Did he just insult-

My chest heaved as I sucked in a shallow breath, attempting to slow down my breathing and cool down the fire in my veins. I focused on the noise and scents swirling around me. I heard the loud thump of double doors, closing behind me. The rhymanic sounds of footsteps of Claude and Kode, following the beating drum of my heart.

Pressing my short nails into my palms, I raised my head to gaze at my father. His black hair was swept back neatly, failing to cover his receding hairline. His aged emerald eyes, surrounded by crows feet fixated on me like a subject under a microscope.

You want to throw insults? I thought. I'll play your game.

"Thousand pardons, sir, but I'm afraid you are mistaken." I said, mocking a bow while maintaining eye contact. "You may be Lord Phantomhive for a few days longer, but you are not my father. He died the day he slept with his mistress."

My father lip quivered as he frowned and eyes went wide. "Why you-"

"Èlaine Astell Phantomhive," said a new voice, from behind the staircase with the sound of high heels clacking against the checkered marble. "Despite his many faults, he's our father and shall be respected."

"Alastair-onii-san!" I glanced to the right side of the hallway and saw not Alastair but Alexander. Both my older brothers are mirror twins and have the spitting younger image of our father. However, they differ in style and personality. Reflecting his playful and carefree persona, Alexander's attire is in disarray. His long, black blue hair was loosely curled and wild, undershirt not tucked into his suit pant and was missing a tie. He looked like a punk rockstar trying to attempt to look like our serious brother Alistair. It was a bit of a shock to hear my full name from Alexander's lips. Alastair is the only one who uses my full name, especially when I'm in trouble like Mother. "Oh, Xander-nii-san. It's you."

With a women?

He walked into the foyer with a beautiful young woman dressed in a red fitted dress and black high heels. An eerie feeling washed over me as if my entire body was telling me to run. She had thick curly black hair that fell on her left slender shoulder and dark brown eyes. Our eyes connected for a moment and suddenly, I felt a dull ache and saw flashes of a man with the same features as the women who hissed my mother's maiden name-Kamado with venom and hatred.

"My my, you've grown in the past few years, however," Alexander said in a sing-song tone. His eyes assessing my attire from my checkered vans, ripped pale blue jeans, a Sailor Moon t-shirt and finally his eyes rested on my earrings. "You still have a ways to go, mon petit soleil ("my little sun" in french)." He teased, pulling me in for his famous bear hugs.

"Xander-niisan." My face was pressed into this chest, making more crinkles onto his wrinkled shirt. Upon impact, I inhaled and came into contact with the sweet smell of lavender and-

Blood.

It was faint but undeniably there. When we pulled back, Xander said something to father and Claude. Quickly, I glanced at his white shirt. No speckles of red. I recalled mother saying that in his youth, Alexander was prone to after school rumbles. In fact, during his last year of University, Alexander and this other guy were fighting outside of class. The students filmed them both beating each other to a pulp. Alastiar had to pry his younger twin off the student. The scandal made headlines, especially on social media. I watched it myself and felt sad for my older brother.

Perhaps, the shirt he is wearing today is the same one from one of these fights. I told myself. With my keen sense of smell, a small amount of blood lingered onto his clothing.

If that's so, why does the scent smell familiar? The annoying voice in the back of my mind.

"Familiar?" I said in japanese, scratching my chin.

"What was that, my love?" Kode said, making me realize that I'd spoken my thoughts aloud. Thankfully, no one here can fluently speak the language well...almost everyone. The women Alexander walked in with is definitely Japanese and is staring at me. I glanced at her right hand and saw one of the Phantomhive family jewels on a women's most important finger: her index.

My eyes widen at the huge diamond ring. Alexander's fiance?! When did this happen? Who is she? Only one way to find out.

Ignoring the urge to correct Kode for a moment, I began my formal greeting to the women with a simple bow. "I apologize for the late introduction and rudeness." I said in Japanese. "I'm Kamado Èlaine, pleasure to make your acquaintance."

"Tsukahiro Aia," The women said in English, bowing. "A pleasure, Lady Èlaine."

"Ah, yes, I nearly forgot," Alexander said, turning away from father. "Èliane, I have great news! Aia and I are getting married, and we're going to be your new guardians! Isn't that wonderful?"

"What?" I said, blinking in disbelief.

"Dear, we agreed to tell her on her birthday." Aia said, smacking his chest with her hand. "You spoiled the surprise."

Alexander laughed. "I was excited...and it's not finalized until Alastair forfeits his claim of guardianship."

I glanced up at my father. "What's he talking about?"

My father gripped his cane. "It's part of your late mother's will. The moment of her passing, she wanted your brothers to both be your legal guardians when they came of age."

"Mom never told me or Grandpa." I said, folding. Sensing another fight, my brother got between us.

"Enough with the legal specifications." He said, glancing back and forth between us. "Why don't you go take a nap, Èlaine. I'm sure your tired from your trip. Claude, would you-"

"I'm not a baby, Xander. I know where my room is." I grabbed my suitcase and headed up the staircase, feeling everyone's stares behind me as tears began to stream down my face.

I spent the remainder of the afternoon on phone with Hisana and Grandfather. He couldn't tell me the details of the will. It was all "part of mother's plan" for me not to know the details. A part of me took it as her last act of protecting me. The other part of me was annoyed and hurt. I could keep secrets. I kept my demon slayer (aka: "KAMADO family heritage") from my brother's and father for a decade.

So why couldn't I be trusted? What did it say?

I called Alastair next, but his phone went straight to voicemail.

"That's odd, he always answers my calls." I dialed his assistant Todd, but even he said Alastair has been avoiding his messages for the past few months. This considered me.

"First, the cryptic message from grandfather. Sebastian. Claude. Kode...wait, he's always been..well, Kode. This death like smell, engulfing the manor. Alexander's fiancé. Mother's will, Alastair's disappearance, and the state of this bedroom." I turned my head to stare at the pink filled monstrosity that was my bedroom. Everything from rugs, curtains, vanity set, dresser, doors, and bedspread was baby pink and gold with big fluffy bows shaped pillows.

It was every little girl's dream of a princess themed room. If I was four, I would have loved this room. But I was not four. Time can't rewind. If it were so, Mother would be here with me.

"Please, please, I'm begging you. Let nothing else happen, eh, Kamisama? (God in Japanese)" I said to the ceiling. "Please, I just want to have a nice birthday and go home."

Frustrated with my life and feeling my breathing rattle, I went out on the balcony and laid on the cement flooring. As I glanced up, waiting for an answer, I breathed in the crisp autumn air and drifted into a deep sleep.

I'm running through an unfamiliar city full of bright lights, following a scent laced with blood, death, and power. Great power. I rushed through an alleyway, entering the center of the city where a bustling crowd awaited. Everyone around me was dressed differently. It was as if I walked through time. Some wore traditional kimonos, while others wore 1920s assemble. The powerful scent engulfed my senses once more.

Like a trail, I followed the scent to a tall man, dressed in a white and black suit. I gripped his shoulder. As he turns back, I'm trembling in fear, but I hold my ground.

'It's him.' A boy's voice says in my head. 'It's him.'

Flashes of a slaughtered family in a small house appear in my mind, but it was not my family. I quickly place a hand on the handle of my sword, ready to avenge the family-to avenge a girl- my sister, Nezeko.

When the demon man turned around, a little girl in pigtails said to him, "Who's that daddy?"

I froze in terror. 'He's living as a human!' The boy's voice screamed in my head. What should I do? What should I do?'

I continued to stare at the man.

"Dear," A women said with the same features as the little girl, light black hair and light brown eyes. She wore a pale blue outfit with a 1920s looking hat. "Do you know this. boy?"

I'm a boy? I thought, wanting to look at myself, but I was not in control of my actions.

"I'm just as confused as you are, dear. Is there something I can help you with, boy?" The demon man replied kindly.

I didn't answer. Irritated, the demon man raised his arm and scratched the back of another man's neck.

My eyes widen in shock, "No. Stop!" I screamed in the boy's voice and ran in between the demon's man family to stop the other man from killing his wife. It was too late. He bit into her neck.

I pulled the recently turned man off his wife, took off my blue headscarf and stuff it into the man's mouth, slamming him to the ground. I dug my knees into his back, restraining him the best as I can. Gripping his hands apart, I watch the man's human eyes vanish into a monster's. His teeth grew fangs, hungry to feast on human flesh and drink red blood.

'Where's the man that turned him?' I turn my head frantically back and saw demon man, casually walking away with his family as if nothing happened. I glanced back to the man I'm restraining, feeling sorry for him and utter defeat. Clenching my own teeth, I turn back at the Demon responsible and scream with all my might:

"Kibutsuji Muzan! I'm not letting you get away! No matter where you go! No matter where you go, you're not getting away! I'll follow you to the ends of Hell, and I swear I'll slice your head off with my blade! I'll never forgive you no matter what!"

The scene of the dream changed, and I'm standing in a black room with a single candlelight.

"Hello?" I called out in English.

No one answered.

"What a weird dream. Why couldn't I dreamt of being a straw hat pirate or-ah!" Feeling a presence behind me, I turned around and came face to face with a boy, wearing a checkered, black-and-seafoam-green, haori over a white robe and black pants. He wore a turquoise scarf too like Mom's. He had the same warm complexion as grandfather and bore the same black red hair, eyes, and scar.

"Hurry. You must hurry. You must save him. Same them all." He said to me in Japanese. He gripped my shoulders with both hands. "You're the only one who can stop the evil from spreading!"

"Him? What evil?...Wait, I know you." I said, trying to put a name to this familiar face. "I've seen you somewhere."

He removes his hands from my shoulder and placed one hand on my cheek. "I have faith in you for you are my blood. Trust my teachings. They will not fail you. "

I felt something heavy in my hands. Glancing down, a beautiful katana was in my hand. A ringing sound erupted in my ears, shaking the entire ground.

The boy smiled. "Ah, it's time for you to wake up, Èlaine-chan. You must go now."

Turning away, the boy started to walk away from me. I remembered his face. I remembered his name. He's in the photograph in Grandpa's study.

"Wait! Wait! Tanjiro-" I reached out for him, but the ground beneath me vanished, and I fell into utter darkness.

I woke up on the balcony floor, gasping for air. Leaning forward, I scrambled into the bedroom to my suitcase for my inhaler. Grabbing it with shaken hands, I inhaled the medication. Feeling my chest subside into a steady breath, I slipped the inhaler in my pocket. Thanks to a certain Phantomhive Lord, nearly one of his descendents in each generation inherits his asthma.

Sighing, I headed for the balcony to pick up my phone, checking the time. On screen, I had about five-hundred IG alerts of comments from Kode's IG. I clicked on his profile and saw his selfie inside the grand entryway. My back was in the photo, while my father at the top of the stairwell. I read the caption: Family Reunions with the Phantomhives 3

"I told him not to tag me in any of his photos." I growled, exiting the app. It was seven thirty when I got off the phone with grandfather. Presently, it was nearly midnight. "Which means," My stomach growled. "I missed dinner."

Slipping the phone in my pocket with the inhaler, I opened my bedroom door and stuck my head out into the hallway. It was pitch dark, save for the moonbeams coming through the row of windows. Glancing to the right, which led into another corridor with more rooms, I saw no light from that way.

"Either the rooms are vacant or sleeping." I whispered.

Tip toeing, I exited my room and headed to the kitchens. There was always this eerie atmosphere at night in ancient mansions with deep twisted history such as Phantomhive Estate. And, oh, does this family have a deep twisted history. It burned once, I recalled, but forgot the reason why. Rumor has it that the entire mansion was rebuilt in a single night by a demon.

I never believed it. For the demons I grew up learning about, they don't go rebuilding family estates out of the kindness of their hearts. Once I found the kitchen, I turned on the light and decided on making a peanut butter and jelly sandwich. I would have made me a full meal, but I didn't want to make noise and awake everyone. Popping open the lid of homemade strawberry jam, I took a small bread knife and began spreading the pink goo when an intense wave of blood enveloped my senses.

I quickly placed a hand over my nose and crouched down, gagging. It reeked of wilted flower petals, rotten fish, sulfur, and blood. Human blood.

'Hurry. You must hurry,' Tanjiro's voice whispered in my ear. 'Save him. Save them all...you're the only one who can stop the evil from spreading.'

Raising from the floor, I swiped the knife from the counter and headed for the origin of the scent. I had no idea what "evil" tanjiro spoke of or who to save. After all, my encounter of Great-grandpaTanjiro was just a dream, but this smell has irritated me the moment I got here. Whatever it was, I was going to find it and report it to Alexander.

Using the light of my phone, the smell led me to a hallway that was blocked off with a thick rope. A sign in English was attached to it that said: Work in Progress. Authorized Personnel Only.

I shone the light on the hallway. At the end of the corridor, I saw a wooden door. Beyond it was the answer to this mystery. Any normal person would obey the sign and turn away. Unfortunately to the person whoever put up this stupid sign, I am not a sane person at the moment. Especially, when I'm irritated and haven't eaten.

Ignoring the warning, I moved it over me and headed for the door. My hand gripped the steal knob with my knifed hand, and my heart skipped a beat.

Don't chicken out. I told myself. Just open the damn door.

Swallowing, I opened the door slowly and saw a line of string lights, illuminating a narrow staircase downwards. Shutting off my light, I closed the door softly and followed the twinkled path. As I walked down, I noticed the aromas intensify the deeper I go. It was colder too.

Am I below the mansion? I wondered and glanced up. I have to be.

"These pesky blossoms may save you from them, but your days are numbered Sir Alastair. Give up." A voice said in the distance, causing me to halt.

"I'm so disappointed in you, Todd." Said the voice of my elder brother. "I had such high hopes for you, but I was wrong. You're just another mindless sheep."

"Shut up!" Todd screamed, following the sound of broken bonesand the fresh scent of blood.

Rushing towards the end of the staircase, I entered a vast room and gasped. In the middle of the room was a large iron cage with wisteria blossoms were interwoven between the bars. Sitting in the middle bound in chains was-

"Nii-san!" I yelled, causing Todd to turn around.

"Lady Èlaine." Todd said. "How did you-"

"Èlaine, get out of here!" Alastair said to me in Japanese as blood dripped from his head and mouth. "Run!"

Fire erupted in my veins as breathing began to shutter. Gripping my butter knife, I controlled my breathing and took a stance. Inhaling sharply, I changed my breathing form.

"Sun Breathing. Seventh form." I muttered in Japanese, taking a stance. "Sunflower Lanc-"

Whack.

Someone hit me in the back of my neck, causing me to fall to the ground. An black sleeved arm hovers below me, awaiting to catch my fall. My eyes blur as all the strength of my body leaves me.

"Èlaine!" Was the last sound I heard before shutting my eyes.

Alastair POV

I watched helplessly as Èlaine fell into Claude's arm. Her butter knife clattered to the floor.

"Why must every master I'm bound too with be obsessed with a Phantomhive?" He muttered, fixing his squared specks.

"People always want what they can't have." I said, staring at him. "You know all about that, don't you Claude?"

His eyes flashed purple.

"Oh, did I hit a nerve?" I said, licking my crustated bloody lips. "I'll let you in on a Phantomhive secret, passed down through the generations. In Ciel's journal, he thought you were creepy."

"I'd choose my next words carefully." He said, gripping a hand on Elaine's arm. "Wouldn't want your precious sister to wake up with a dislocated arm."

"Claude, sir, you can not harm Lady Elaine!" Todd said, leaving the cage. "Lord Alexander and Lady Aoi will be furious."
Claude tsked and hauled Elaine over his shoulders. "I'd be more concerned about my own affairs, human."

Todd swallowed. "I-um-"

On his heal, Claude spun around and began his ascend up the staircase.

"If I find out you harmed a single hair on my sister's head. I'll personally kill you, Claude Faustus." I said with lethal calm.

He paused in midstep, glancing over his shoulders. His squared specs gleaned from the fluorescent light. "I would like to see you and your crow try, Alastair Phantomhive."

After he left and Todd re-locked the cage to go report to my pitiful younger brother, Sebastain appeared outside the cage.

"Isn't this is a familiar sight." He said as he leaned against the cage, pressing a hand to his forehead. "For a century, I've watched my late Master's descendents be born, grow, and die. Some were born great. Some achieve greatness, while others weren't smart enough to see the spider's web. If memory serves me, at least one of you Phantomhive's per generation are always prone to be shackled and forced to dance another tune. How sad. If only I could tell him what has become of his household."

"My brother made his choice. " I said, glancing away. "He is beyond redemption."

"We shall see." Sebastian said, leaning away from the cage.

"Any news from the Corp?"

"They're arriving tomorrow with their best warriors along with Haganezuka-san."

"Good. Everything is going according to plan."

"Your orders?"

"It remains the same."

"I shall continue to guard the young mistress without being noticed or followed, my Lord." Sebastain said, dropping to a bow.

"I'm not Lord." I corrected him. "Not yet."

"My apologies, young master."

I shook my head and smirked. " Just go you crow. Time is of the essence."

"Alastair." Sebastain called, and I glanced up. "You are one of the greats. Your mother would be proud of you."

Before I could even reply, he vanished on a phantom wind. Alone once more, I tilted my head back towards the small window, watching the first light banish night. I wondered what she would have thought about all this. Would she truly be proud of me, knowing I was using my siblings as a means to an end?