Plot inspired by the anime "Soul Eater"
Crossover inspired by bluesilktie on tumblr and her wonderful art which can be found here by adding her url: post/70140172709/soul-eater-au-for-those-of-you-who-are
The woman's heels clicked against cold stone as she walked down the empty street. The smiling moon was high in the sky and the air was thick with humidity. All was silent save for the echoing click from her shoes and a bell chiming in the distance. Nothing else could be heard. Not even the black-eyed demon as it stepped out from the shadows before her and slashed her chest open with a blade.
The woman fell to the ground, a choked off scream dying in her throat. As blood pooled around her body, the demon crouched over her and watched a small, vaporous blue light travel upwards from the open cavity of her chest. The fingers of the demon's possessed vessel reached out and pulled at the soul, guiding it towards his open mouth. As he swallowed the woman's spirit his eyes glowed bright blue for a brief moment before dimming back to black. He looked down at his victim and nudged the body with his foot, a sadistic smile creeping onto his face.
A scream rang out in the street. The demon's head snapped up in time to see another woman sprinting around the corner, away from gruesome scene she had just witnessed. The demon's smile grew.
"Hungry." He hissed as he took off after the woman. He chased her until she tripped and fell, falling hard to the ground near a set of stone steps. He caught up and sent a swift kick to her ribs as she tried to stand. She fell back to the ground with a cry. He towered over her with a raised blade, intent on taking another soul.
A short snicker echoed through the street.
The demon froze, blade still in the air, and looked up at the steps. There he saw two boys, one sitting on the steps and the other standing, their faces barely visible beneath the dim light of the street lamp above them. The woman let out a small whimper and scurried away while the demon distracted.
"That man, Cas. His soul…" The boy who was sitting said. He was lounging on the stone steps, nonchalant, adorned in jeans and a t-shirt. The one who was standing, hands folded behind his back in a position of maturity, was dressed in a slightly more formal manner in a tie and white dress shirt, the sleeves rolled up to his elbows. "Yes Dean, there's no doubt about it. He's been possessed by a demon. He isn't human anymore."
"Alright then." The one on the steps, Dean, stood and cracked his knuckles. "Let's kill this son of a bitch fast. I wanna get home in time for dinner." The demon gave a snort of disbelief.
"That's a lot of talk for a couple of kids." He remarked, twirling the blade in his hand, making sure they could see he was armed. The boys seemed to ignore it. That or they simply didn't care.
"Just so we're clear Dean." Castiel said as he walked over to stand next to him. "This man has killed countless people for their souls. We've done the same." His shoulder twitched as a great, curved scythe blade shot up from out of his back. It glinted in the moonlight, onyx and sapphire metal gleaming. The demon's smile fell. "But I suppose it's a bit different for us." The rest of Castiel's body shifted into a full scythe, complete with a long ebony staff.
"Damn right." Dean agreed as he caught the seven foot scythe and twirled it expertly in his hands. "Hey, ugly!" Dean called, addressing the demon. "Your murdering days are done. Your soul is mine, you bastard!" The demon growled and sprinted up the steps. Meeting Dean half way up, he swung his blade towards his face.
"Weapon and meister, two fighting as one." Dean said as he dodged the swing, fighting back with his own move. "Let's go Cas." The blade cut through the air, only managing to slice open the demon's shirt as he narrowly missed the blow.
The demon came back again swinging his blade back and forth. While human beings are remarkably slow even at the best of times, possessed ones have incredible speed, agility, and strength. Dean deflected each shot with the handle of the scythe. The demon kicked at Dean's knees, forcing him back to avoid being tripped. While Dean was stumbling back the demon made another attempt to strike down the meister. Dean parried the attack and swung his scythe.
Swipe, dodge, hit; each move was immediately followed by another, with no break in the rhythm. The fight carried on until Dean and the demon were each at the edge of the stone steps. Dean raised his leg as the demon lunged for him and kicked at his chest. The demon fell back and lost his balance as his foot caught the edge of the top step. He grasped in vain at open air as he fell. Dean drew his scythe back, ready to swing.
"It's ours now!" Dean shouted as he swung the scythe directly into the demon's abdomen. "The ninety ninth soul!" The scythe sliced through the demon, splitting him in half. He erupted in a dark explosion that made Dean wince and shield his eyes. When he looked back, the only thing left of the demon was the floating wisp of his soul. The soul was similar to that of the woman's except it was twisted and black, like dark smoke. It drifted and hovered in the air a few feet above the ground.
Dean tossed his weapon into the air. As it fell back to the ground, the scythe shifted back into its human form and made a clean landing.
Castiel walked over to the coiling soul and, just as the demon had done, coaxed it into his mouth, swallowing its darkness. His eyes glowed for a moment before returning to their normal, deep blue color. Castiel clapped his hands together and gave a smile.
"Dean, thank you for a good meal." Dean smiled and walked up behind him.
"We're almost there, aren't we?" He said. "Took us long enough but that was number ninety-nine. We've finally collected all the souls we need." Castiel nodded and turned around to face his meister.
"There's only one thing left now. I've just got to eat the soul of a Knight of Hell. Then I'll be a true Death Scythe, worthy of being wielded by God himself." He turned back around and started walking back up the steps. "It's incredible." Dean ran up the steps, following his weapon.
"Yeah, well don't forget who helped get you here." Dean reminded his partner, nudging him with his elbow. Castiel turned and smiled at him. Dean almost had to take a step back as Castiel crowded into his personal space like he normally did when they talked.
"Of course, Dean. I could never thank you enough." Dean smirked but couldn't fight the blush rushing to his cheeks from the intense stare his weapon was giving him. He turned away quickly, thankful there was no one else around.
"Anyway, we should report back to the headmaster and let him know." Dean jogged up to the nearest shop window. It was a pie shop and for a moment he was distracted by the pastries inside. Castiel gave him a nudge. Dean looked up.
"What? I'm hungry." He defended as he blew on the glass, creating a sheet of condensation. "Just draw the call sigil." He murmured to himself as he began tracing symbols into the condensation. Sigils and portals were the most common form of communication at the academy. It was also essentially the only way anyone can get a hold of the headmaster. He finished writing and stepped back as the window began to glow. Soon they were looking into the headmaster's office at the academy. The desk he normally sat at was empty.
"Hey, Headmaster Shurley. You in there?" He called into the window. "Meister Dean reporting."
"Yes, yes." A voice called back to them. The face of a scruffy, middle-aged man appeared in the window. "Hey there, Dean. How did it go?" Headmaster Chuck Shurley's weary face was animated and his tired eyes lit up at the sight of Dean, one of his best students. He sat down at his desk.
"I've just collected the ninety ninth demon soul, sir." Dean responded. "Now we just have one Knight soul left to collect and we'll be done."
"Well done Dean." Chuck congratulated, a proud smile on his face. "You're proving to be just as excellent a meister as your mother was." Dean gave an appreciative but sad smile. He didn't like it when people mentioned his mother. She died when he was young, killed by a demon after his father failed to protect her as her weapon. After that his dad went insane trying to track down the demon who killed her, but without a meister to wield him he was useless. He ended up getting killed for his stupidity, leaving Dean and his younger brother Sam to fend for themselves until they were adopted by their good friend Bobby Singer.
"Hey, idjit!" Speak of the devil. Dean's thoughts were interrupted as a voice called out from outside the viewing range of the window. Cas's head shot up from where he was staring at the ground, not having been involved in the current conversation. Chuck moved out of the way as Bobby Singer crowded into the window. Of course he would be there. He was Chuck's current weapon, a large double barrel shotgun. Bobby stared down Castiel.
"If you let a demon lay a hand on my boy I will blast you so full of buckshot-"
"Bobby!" Dean shouted, cutting him off. "If I slip up it sure as hell won't be Cas's fault. Lay off a bit, will ya? You do this every freaking time." It was true. No matter how much Castiel had proved himself, Bobby was always quick to make sure he was taking care of Dean. He did the same for Sam and his meister, Jess.
"I swore I would protect Dean, Bobby. I don't intend to go back on my vow any time soon." Castiel assured him.
"Enough of that!" Chuck cut in. "Bobby, I don't know if you heard but Dean and Castiel just collected their ninety-ninth demon soul."
"Congrats. Now don't screw it up." Bobby said. The man actually was quite proud, and Dean knew that, he just had his own way of expressing emotion.
"What do you mean don't screw it up?" Dean asked. Chuck shifted uncomfortably behind his desk.
"As you know if a meister and weapon pair collects ninety-nine demon souls, souls of those who have been possessed by demonic forces from Hell, and additionally collect the soul of one Knight of Hell then the weapon will obtain the qualifications necessary to become a death scythe, meaning you're eligible to be one of God's personal weapons." Dean saw the corners of Castiel's mouth quirk into a small smile. It was his dream to be a personal weapon to God, one that he would use if a major war were to arise. Until that day he remained hidden, never intervening in trivial matters.
"Right, we know all that." Dean said. Castiel nodded in agreement.
"Well it's that last soul that's a bit tricky. You've made it this far but you should know there are countless meisters who have lost their lives when they challenged a Knight of Hell. You'll need to be very careful Dean, but if you're lucky then maybe the death scythe you create will be as powerful as the scythe that your mother created."
Dean gave a small nod but in the back of his mind he knew Cas would be stronger than his father ever was. Hell, he may even be stronger already.
"But as Bobby said, please do be sure not to make any mistakes." Chuck continued. "This last collection is very important. If you slip up then all of the ninety-nine evil souls that you've collected so far will be confiscated lost." Dean blinked.
"I'm sorry, could you repeat that?" He asked incredulously. "Did you just say we'd lose all of those souls? Every last black-eyed son of a bitch we've killed, down the drain?"
"I'm sorry but those are the rules." Chuck said with a shrug.
"So don't screw up." Bobby reminded them.
"We'll make a clean job of it, no worries." Castiel assured them. Dean was still staring at the headmaster in shocked silence.
"Alright. I'll see you two later then." The image disappeared as Chuck signed off. Dean stood there and stared at the shop window, unmoving.
"Dean?" Castiel reached out a hand to his meister. But before he even got close to him, Dean turned sharply and took off down the street. Castiel ran after him.
"Ninety-nine damn souls," Dean called out to the empty street. He didn't turn around. He knew his weapon would be following him. "Years of hard work and it can be destroyed because of one freaking slip up?"
"Dean-" Castiel began. He nearly ran into the fuming meister as he stopped abruptly in the middle of the street and turned to face him. Dean's eyes were bright, anger and frustration seemed to radiate off of him. Their faces were inches apart but neither seemed to notice.
"Why did no one think to tell me this?" Dean asked. Castiel gave a non-committal shrug.
"I thought you knew. Most people do. It never came up before because we've never been this close." Dean's eyes closed and a deep, exasperated sigh escaped his lips. Castiel placed a hand on his shoulder. "It's going to be fine. Like I said, we'll make a clean job of it." He said with a smile. Dean's eyes opened and widened upon noticing how close he was to Castiel. He took a step back and Castiel's hand fell back to his side, his smile falling slightly with it.
"Alright," Dean said, a small blush creeping on to his cheeks again. "Let's find this Knight of Hell and end it then. It's about time you became the greatest death scythe the world's ever gonna know." He said this with a smirk, his cocky bravado shining through. He stuck out a hand. "You ready, Cas?" Castiel looked down at the outstretched hand and grasped it, giving Dean a wide smile.
"Ready, Dean."
I'll attempt to post a new chapter every one or two weeks but that schedule may be inconsistent due to hectic schedules. I'll try my best though.