Their Assassin {Black Butler x Reader}

twenty-six

The first thing you heard when you wake up was a soft voice, whispering into the darkness. You kept your eyes closed and listened to the whispers. However, they were too soft for you to hear what the person was saying. You felt them sitting close to your feet. The mattres was slightly dipped down by their weight. 

Although the whispers calmed you and made you feel safe, your curiosity to the person behind them made you open your eyes. Immediately they stopped. 

"[Y/N], I see you're awake." Sebastian sat on the end of the bed with a small grin playing around his lips. 

You ignored his statement. "What were you whispering about?" Your eyes were pinched into slits, looking at the demon with a hint of suspicion. His grin dissapeared from his face and got replaced by a smirk. The demon leaned closer to you and placed his hand on your left cheek.

"Lets keep that a secret for now." You slapped his hand away and got up from the bed. You muttered a series of cursewords under your breath before turning to Sebastian again.

"Well then you aren't needed here anymore. Leave." Your look was cold as ice, Sebastian's being fierce and cocky.

He stood up from the gigantic bed and bowed infront of you. "One last thing, milady. Today we want you to stay in the mansion. You are allowed to go upstairs, but the garden is off limits. We will be leaving soon and will return at midnight. The other servants will take care of your needs." He straightened his back again and looked at you. You raised your eyebrows.

"Where are you going?"

"I am afraid I am not allowed to tell you that. I hope you understand." A soft smile graced his handsome facial features.

"I don't." You said, folding your arms over eachother. Sebastian frowned at you. Then he just shrugged.

"All will be explained when we get back. The young masters will be keeping you company at the mansion." He bowed. "Goodbye for now, milady. May we soon meet again." A charming smile made a slight blush appear on your cheeks. You cleared your throat.

"Goodbye." Sebastian turned around and gracefully walked his way out of the big room.
You sat back down on the bed again with a soft sigh. This would be quite the boring day, was what you thought.
After some zoned-out staring you got up from the bed again. Perhaps the day would be more eventful if you looked around your room and checked it out for a bit.

You moved through the room, opening all the drawers and looking in all the closets. Everything that had a way to be opened got opened. You didin't find anything important, just some basic stuff like brushes, clothes, perfume and more, but it kept you busy and you enjoyed exploring unknown places. 

You were busy looking through the contents of yet another drawer you had opened as a sudden hand on your shoulder made your heart skip several beats. You quickly turned around to come face to face with Earl Trancy. "Did I startle you?" He asked with a grin plastered on his face. A harsh glare made him chuckle softly. He grabbed your hand. "Come, it's tea time." With that he turned around and marched out of the room, pulling you behind him. 

-

"How are we even going to get inside?" An annoyed looking William said. He had been forced to go on the secret 'mission' of Sebastian by Grell, who wasn't even invited himself. 
The group of four made their way through the muddy area without any problem. 

"I am acquainted with some guards that work at the castle. I suspect it will not be too hard to enter it." The words danced off Sebastian's tongue, covered in his posh accent. Claude rolled his eyes, but didn't say anything. 

"How do you even know demons like that?" William was not really interested, it was more a question that was not supposed to get an answer. However, for whatever reason Sebastian felt the need to answer it anyway. 

"Through my friendship with the demon prince I got to know some people at the castle, among which the guards and his brother." 

"Good connections make a man even more handsome!" Grell exclaimed. The other three super natural beings decided to just ignore the red haired reaper. 

"I don't see how a demon like you could even meet royality." Spears muttered while staring off into the forest. 

A small smirk graced the lips of the butler. "I guess it was a long time ago," he spoke softly, "we became authentically different people." 
After that no one said anything anymore. 

The journey to the castle didn't take too long. In no time they stood in front of the giant building that held their prey inside. When they reached the gate it looked like Sebastian had told the truth about his acquaintances. Soon they were inside. The room of the demon prince got found very quickly because of Sebastian's good memory. 

"I'll enter first." Claude spoke as they stood in front of the giant, white door. Drawn on it in gold was a demon-like man with big horns sticking out of his head. It resembled Alden. That door got opened by Claude. Not fully open, but just slightly. He first took a peek inside. There he was, the demon prince, reading a book on the expensive couch next to the window. He looked elegant in his black robe and with his reading glasses on. 
His attention got pulled away from the book when Claude decided to step further into the room. A grimace crawled its' way onto his face. 

"I knew you were coming, but didn't think it would be so soon." He closed his book and laid it down on the table next to the couch. "Your friends can come in too. I won't bite-" a smirk appeared on his face, "hard." Claude looked a bit annoyed. 
Sebastian, William and Grell made their way into the room. Grell's eyes lit up when they fell onto Alden. Blood started pouring out of his nose.

"Oh wow!" He exclaimed. 

"Control yourself, Sutcliff." The second reaper said with a hint of annoyance. 

Sebastian made his way further into the room until he was just a few feet away from Alden. "Lets get this over with." He spoke. "There is only one way to settle this." 

"Oh I understand. The only way is that you bring me what's mine. So where is [Y/N]?" Alden smirked at the demon infront of him. 

"We had another way in mind." Sebastian's eyes glowed pink. The demon prince tried to fake a shocked expression, but the small smile that played around his lips gave him away. 

"Four against one, how crude!" He mockingly exclaimed as his wings started coming out of his back. The three demons in the room turned to their demon forms and the reapers got their death scythes out. 

"It saddens me that it has to end like this." Alden said. "But I'll do what I have to do. See you in the afterlife, old friend." 

A fight of elegance and power broke out, but there was only one way it could end. That way was how it really went. ({A/N} I'm really bad at describing fights and stuff so just imagine something spectacular I guess)

The prince of all demons lost. One of his own kind behind him, a sharp knife on his throat, barely piercing his skin. "Any last words?" 

{A/N}

Hey guys! 

This story is slowly coming to an end so I have to know who you want to end up with. Please comment your favorite out of Claude, Alois, Ciel and Sebastian. Maybe if some of you want one of the reapers I'll make an afterending. 

Bye for now!