1 - 20 of 1,648 Works in Undertaker (Kuroshitsuji)

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  1. Tags
    Summary

    Dropped into the fantastical and horrifying world of the hit Manga series by the great Yana Toboso; Black Butler! One cannot help but wonder... What adventures shall await you...?

    Black Butler Reader Insert!

    Language:
    English
    Words:
    153,595
    Chapters:
    113/?
    Comments:
    23
    Kudos:
    63
    Bookmarks:
    8
    Hits:
    3,005
  2. Tags
    Summary

    Everyone's lives at Night Raven College are thrown into chaos when memories of the students' past lives are forced to the surface. Loyalties new and old will be tested, as those affected by the worst of it struggle to make sense of who they were then, and what that means to them now. But is there something more sinister under the surface pulling the strings?

    Tags are by far not exhaustive and will be updated as needed. (Currently maxed out)

    Language:
    English
    Words:
    49,726
    Chapters:
    15/?
    Comments:
    126
    Kudos:
    173
    Bookmarks:
    47
    Hits:
    4,184
  3. Tags
    Summary

    Yearning for something is such human desire, but in the end, it's no different than demons are. Elizabeth has gotten involved into the world that she's didn't mean to be in but she wanted to prove herself that she is capable. Learning from Mey-rin the Assassin Goddess and Demonologist and the rest of the Assassin's. But secrets reveal not just Mey-rin life but the Phantomhives as well! What you yearn for will become blessing or curse young demonologist.

    Language:
    English
    Words:
    51,846
    Chapters:
    14/?
    Comments:
    8
    Kudos:
    12
    Bookmarks:
    2
    Hits:
    348
  4. Tags
    Summary

    REPOST SORRY

    Maybe if what happened back then had not happened, he wouldnt be holding her hand now.

    A Ciel Phantomhive X Reader, in my own canon divergence aka R!Ciel lives after the Manga ends and is called Sirius, Ciel is the earl.

    Language:
    English
    Words:
    5,557
    Chapters:
    4/?
    Kudos:
    10
    Bookmarks:
    1
    Hits:
    247
  5. Tags
    Summary

    Ciel orders Undertaker to fire the new maid. The thing is...Undertaker hasn't hired any maids.

    (Contains spoilers for the Blue Cult/Blue Revenge arcs)

    Language:
    English
    Words:
    9,552
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    7
    Bookmarks:
    1
    Hits:
    56
  6. Tags
    Summary

    Before he was the local man who ruins everything, he was just a Grim Reaper who had fallen in love with the wrong girl.
    Before she was a Watchdog lost in history, she was just a girl fighting for her heart and soul.
    Before all, they were just two wanderers crossing paths.

    Series
    Language:
    English
    Words:
    479,790
    Chapters:
    51/?
    Comments:
    85
    Kudos:
    193
    Bookmarks:
    26
    Hits:
    7,609
  7. Tags
    Summary

    The room is silent. Ciel focuses on the glow of the candle as Sebastian slips the main dress off his shoulders and lets it drop unceremoniously onto the ground. He feels a slight chill in the room as he digs his fingers underneath the petticoat and grazes past the dip in his hips.

    Ciel fights the urge to gasp. The devil was fucking with him.

    The cotton petticoat meets the floor, along with the crumpled up dress. Despite the fact that Sebastian has bathed and undressed him every day for nearly four years now, Ciel feels strangely vulnerable to be standing here in nothing but ladies undergarments. It feels surreal—just the two of them, in this honeymoon suite. He curses himself for letting his head go there, wishing, wanting almost for it to be real.

    Language:
    English
    Words:
    28,433
    Chapters:
    2/5
    Comments:
    54
    Kudos:
    207
    Bookmarks:
    41
    Hits:
    2,320
  8. Tags
    Summary

    After the Campania arc, Sebastian and Ciel looked forward to some much-needed relaxation. Suddenly, they (and some other characters from their world) find themselves in a strange new place more than 100 years in the future with costumed rogues roaming the streets and a man dressed as a bat on a crusade to stop them. How will they ever get home?

    Language:
    English
    Words:
    24,598
    Chapters:
    9/10
    Comments:
    17
    Kudos:
    52
    Bookmarks:
    10
    Hits:
    958
  9. Tags
    Summary

    Ciel grows attached to the monster under his bed, especially upon discovering that the eldritch creature living under his bed and sometimes in his closet would do quite literally anything for him because he is gay.

    Language:
    English
    Words:
    2,522
    Chapters:
    1/?
    Kudos:
    16
    Bookmarks:
    4
    Hits:
    355
  10. Tags
    Summary

    A young noblewoman is sent to work a job to straighten up her bad attitude and finds more than she anticipated when she's sent to a strange shop and meets a strange man. ♚[© 2023 | @Anuyushi ]♛

    Language:
    English
    Words:
    57,863
    Chapters:
    16/?
    Comments:
    13
    Kudos:
    70
    Bookmarks:
    6
    Hits:
    1,245
  11. Tags
    Summary

    Celia Phantomhive loses everything but the all-consuming need for revenge. She makes a deal with a demon in exchange for her soul, unaware he desires more than just her soul at the end of their arrangement.

    But what will this demon do when feelings get involved?

    Language:
    English
    Words:
    82,095
    Chapters:
    25/?
    Comments:
    84
    Kudos:
    332
    Bookmarks:
    66
    Hits:
    8,933
  12. Tags
    Summary

    I'm beautiful. But what am I to do if no one sees what I do? I rot in the darkness as you come across me. It's all a trick though isn't it... But oh your warmth from your body brings me life. I'm in my prime, ripe and waiting to bloom in your hands.

    Language:
    English
    Words:
    2,026
    Chapters:
    1/?
    Kudos:
    5
    Hits:
    106
  13. Tags
    Summary

    I should've just read the manga. I spent years avoiding it but then I was suddenly transported into the world of Black Butler. Left to fight for my life in a fictional story about a demonic butler and his equally demonic child Master, I had no choice but to follow the story to wherever it would lead me and hope that I didn't die. Join me in a tale of mystery and fictional madness.

    Language:
    English
    Words:
    189,450
    Chapters:
    25/?
    Comments:
    27
    Kudos:
    164
    Bookmarks:
    42
    Hits:
    5,447
  14. Tags
    Summary

    Weston University is a college where only the most prestigious and wealthy students go. Sebastian Michaelis is a new professor at this university and has a secret. He so happens to be a vampire, and he’s not the only one in the school who shares this secret. One day, a student named Ciel Phantomhive takes his class. Ciel soon begins to realize that everything is not what it seems at Weston University. A string of deaths begin to take place that are connected to his parents’s deaths. Will he succumb to his darkest desires? Or will he fight against them?

    Language:
    English
    Words:
    19,297
    Chapters:
    6/?
    Comments:
    2
    Kudos:
    8
    Bookmarks:
    1
    Hits:
    164
  15. Tags
    Summary

    Claire Phantomhive, the first woman granted the title of Earl and the embodiment of the saying, "Hell hath no greater fury than a woman scorned".

    Language:
    English
    Words:
    8,730
    Chapters:
    3/?
    Comments:
    8
    Kudos:
    35
    Bookmarks:
    7
    Hits:
    418
  16. Tags
    Summary

    Adolescence is the dormant rose of winter: a prickled, ugly, tangled mess of vines and thorns, with flowers promised only in the distant spring. “Spring” seems so far off to the demon that must console his angry, hurting charge in the midst of puberty — but it will come, and not without a price that they both must pay.

    Language:
    English
    Words:
    322,273
    Chapters:
    32/?
    Comments:
    1,264
    Kudos:
    1,046
    Bookmarks:
    228
    Hits:
    48,780
  17. Tags
    Summary

    After Harry's vacation death and his sisters sent Harry on a trip to another universe. Thrown into a new world where demons and Death reapers are walking around together while not trying to kill each other was a new but not an unwelcomed sight.
    Oh and why on earth does a child have a demon as a butler.

    Language:
    English
    Words:
    5,032
    Chapters:
    8/?
    Comments:
    33
    Kudos:
    620
    Bookmarks:
    171
    Hits:
    11,504
  18. Tags
    Summary

    First story on AO3 ever that was written because I got bored but anyway;

    You died in your previous life and was reborn in the world of Black Butler, and for personal reasons, you killed yourself and was now a reaper that is more widely know as "the demon". Partnered with the one that will soon be known as the Undertaker, as well as the one who would create "bizarre dolls", you attempt at changing this man's fate and the future. But as time passed, you started to realise what this man was to you. But what was it that made you hate him so? That it made you hate yourself?

    Please note, that this was written based on another fan fic I read called "I Hate You! I Love You!" on Wattpad, so please go check that out? If any parts are too similar to the original, I apologise but this is something I purely wrote for fun and mostly cus im bored and my brain only ever functions at 3am

    If you see this on Wattpad it's because I also posted it there

    Language:
    English
    Words:
    38,078
    Chapters:
    28/?
    Comments:
    4
    Kudos:
    17
    Bookmarks:
    1
    Hits:
    415
  19. Tags
    Summary

    Births between a Human and a Demon weren't unheard of. It wasn't unheard of, for the offspring to not live to their first year of life. The same applies to Mavis Fairview, daughter to a Human mother and a Demon father. But somehow, she's gone on to live well past her 6th birthday. But after the death of her beloved father, Mavis is on the hunt for his killer. Winding up in London, England, she runs into an unfortunate situation that results in her working together with a ruby eyed butler, and a snotty little Earl in her endeavors to seek the truth.

    Language:
    English
    Words:
    82,564
    Chapters:
    21/?
    Comments:
    35
    Kudos:
    143
    Bookmarks:
    43
    Hits:
    5,514
  20. Tags
    Summary

    Its been a 3 years since ciel became a demon and stock with his most forced loyal butler sebastian so what will happen when he get the opportunity to know more about his beloved servant in the form of an Invitation to a party ?

    Language:
    English
    Words:
    1,040
    Chapters:
    1/?
    Kudos:
    1
    Hits:
    94

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