Author's Note: Happy New Year! Hehe, I've been wanting to upload this since my mind came up with this idea. Sadly, my break is going to end soon so I won't be updating until a while... There aren't any spoilers in this story, except for the fact that Erwin loses his arm. Besides that, this story takes place in the anime version. The main pairing of this story is Erwin and OC. I don't know if I'm going to keep Levi's crew alive or not... Anyway, Enjoy!

Disclaimer: I do not own Attack on Titan.


Chapter One

"And that's it!" Elysia exclaimed.

Levi rolled his eyes. Erwin and he have been stuck here, in a laboratory with no one else but Elysia, head scientist of the place. She was going on about some lab experiment which involved Titans and which could potentially give Erwin back his arm and other soldiers their missing limbs. Levi was disinterested the moment she started talking, but Erwin was captivated by it, even though his facial expression was stoic. Levi regarded the time. It was midnight.

Both of the boys stared at her as she took out some more blueprints from a drawer.

"Look here. This is the part where we have to extract the titan's arm, but we need a way to preserve it since their bodies dissolve when in contact with air after it's been dislocated right? So here," she pointed at another part of the organized blueprint, "is where this," she pointed with her other hand at a design and calculations that Levi couldn't decipher, "comes into play. It serves as a preservation of a titan's body." She smiled at Erwin. "And then you know what comes next. The research, the experiments and -" before she could continue, Levi interrupted her explanation.

"What's the catch?" Levi asked, knowing that Elysia was hiding something about her experiment and it was now or never to figure it out.

"The catch is the Titans." She said vaguely.

"Titans?" Erwin inquired, still having his stoic mask in place.

Elysia nodded. "The test subjects are Titans. I'll be needing a few… samples." She said.

"And where are you going to be getting these Titan samples?" Levi asked.

Elysia head snapped up to meet his eyes. "That's where you come in." She said boldly.

"Me? And what made you think I would help out with your experiment?" He questioned, although he wouldn't hesitate to help his superior. He just wanted to spike her a bit, to see how far she was willing to go to… entertain him.

"Well, wouldn't you want to? You wouldn't be helping only," she motioned to Erwin, "him out. If this is a success, then you'll be helping out with more people." Elysia retorted.

Erwin intervened their conversation "If? So you have doubts in your experiment?" He questioned.

"Look, everyone has their doubts. If they didn't then they aren't human." Before Levi could interrupt her she added, "Captain Levi you're an exception. You're not human." She finished.

Levi smirked. The girl knew how her place, but it wasn't going to stop her from speaking her thoughts.

"You're going to help right?" She asked Levi.

Levi shrugged. "It depends. It's going to be a challenge to get a sample without killing the Titan." He said with a vicious gleam in his eyes, only to have it disappear a second later.

Levi observed Elysia while Erwin was having a look of her other blueprints that she designed. Elysia was hopping around the lab, organizing some products on some shelves. He watched her as she reached for something that was on a shelf that was beyond her level. Erwin peered over to her as well to watch her struggle. Aware of their attention on her, Elysia smiled towards them. Then she jumped and knocked everything that was on the shelf, but got ahold of what she needed.

"Alright." She dusted off the imaginary dust off her coat and walked over to them. She handed them the small bottle that was filled with blue liquid. "This is the thing that will preserve a titan's body until it reaches our refrigerator." She said. "The only problem, is that we need a way to bring the arm here without alarming the citizens." She said.

Both of the boys nodded in understanding. Bringing a part of a titan into Wall Sina was a big deal. Considering that the King lived there and his goal was to prevent any Titan from coming in, this was going to be tricky.

"How long is this going to take?" Levi asked, wanting to know how much of his efforts were going to be wasted.

"As soon as I get the sample I can do some research and then we'll proceed with the process. So I'd estimate about a month after I get the sample." Elysia said.

Erwin nodded. Even though he wanted it to be sooner, her didn't want to risk the outcome of a malfunctioning arm.

"If you have any spare time before your next expedition, it'd be great for you to stop by so I can take some measurements and make some basic calculations on it until the sample arrives." Elysia elaborated.

Erwin nodded in approval. "Expect me sometime this week. It won't be until next week that we'll be leaving for the next mission."

Elysia smiled. "Stay alive by then Commander Erwin." She regarded Levi begrudgingly but still genuinely. "You too Captain Levi."


Elysia removed her lab coat and hung it on a hook before reaching for her jacket. Ready to leave, the boys gathered their belongings too.

Elysia headed in the opposite direction from them and bid them a farewell.

The walk to their apartment was quiet. Levi regarded Erwin's tense composure. Erwin balled his fists. Levi observed his movements without comments.

"It's going to be beneficial if this is a success." Erwin said, breaking the silence amongst them.

Levi didn't do anything to show that he heard what Erwin had said.

They separated paths and Erwin to his apartment, heading straight to the washroom once he entered his lonely suite and stripped himself of his clothes. He observed his body in the mirror. He was muscularly built, with a tall frame reaching a height of 6,2 which was often advantageous while fighting Titans. He reached for his razor on a higher shelf, remembering how Elysia struggled to reach something on a high shelf and how she didn't ask for help. He started to shave the small amount of hair that collected around his chin area, ready to grow into a beard. He stared into his reflection and into his clear blue eyes to see that it was empty of any emotions. They were dead. He finished shaving and placed it on the high shelf again, ready to shower.

After his shower, and dinner, Erwin headed to bed. He settled himself onto his mattress and stared at the dark ceiling and the small streak of light that escaped from the window. He balled his hand into a fist, gripping the blanket with a thought running through his mind the entire time until he fell asleep. I'm going to get my arm back.


Author's Note: So how was it? I know it was short, but I would really appreciate it if you guys left a review telling me what you think. Oh and just a notification: This story, along with all of my other stories, have not been betaed so please let me know if there are any errors or concerns. Check my profile for any updates!

Please review, constructive criticism much appreciated!