A/N: Hi there! I decided to do a series for AoT and wanted to try out this chapter to begin with, so forgive me if it's jumbled. It's mainly quick dialogue and explanations for the prologue in the beginning just to get to the main plot. There will be slow updates, so yeah…

Enjoy!

A bright-eyed young doctor bowed before his new colleagues, a sense of pride overcoming him as he introduced himself. He had graduated in the top five percent of his class and was excited to begin his career as an emergency physician.

"I'm Eren Yeager! I am the newest doctor in emergency and I want to help as many people as I can! Please take care of me from now on!"

It wasn't all rainbows and roses not a month after his hire. Eren was trying to clean the wound of a bleeding little girl who had a broken collarbone from a car accident, but kept drawing back as the girl cried at higher pitches whenever he pressed the alcohol swab near the scrape. It didn't help that the mother of the girl was screaming at him when her daughter did, accusing him of hurting her on purpose and giving him more stress than he had the patience for. A voice boomed behind him when the females screamed again.

"Oi, what the fuck are you trying to do, sting someone to death with rubbing alcohol?" Eren turned and was taken aback when a handsome short man in a medical coat with angry grey eyes strode in with a scowl on his face.

"Give that here." Without waiting a beat, he grabbed the forceps from him and nearly jabbed him in the eye with them. "Listen, brat, it's going to hurt regardless. Make it quick as possible so the patient isn't in pain for long." He sped through and cleaned the girl's scrapes without flinching when she managed to cry some more. Eren watched with amazement as the man didn't waste a second as he disinfected and bandaged the wounds, but was a little peeved by the man's rudeness. The man stood, bowed his head to the girl's mother and left without a word. But before he left, he glanced back at Eren one last time, his grey eyes piercing Eren's deep greens.

Eren saw him at lunch the day after with his ER doctor friend Armin. The blonde's eyes almost popped out of his head when he noticed the sullen doctor sipping coffee with a group.

"That's Dr. Levi Ackerman, the top cardiac surgeon in the field! I'm surprised he came down here, he rarely ever does. He usually makes one of his assistants get coffee for him." Eren's jaw dropped. That jackass was the top cardiac surgeon? In med school, Eren had heard stories of the man nearly ninety percent of the students wanted to be like. Hell, even he wanted to be like him. But Levi rarely made appearances and worked in the dark while everyone around him spoke of his achievements. He looked over at him, pouting as he remembered the man's attitude. But if he was really great, then he deserved all the respect he could give. He had got him out of the bind with the girl and her mother yesterday. He got up from his chair and made his way to Levi's table. Everyone there paused when he approached them. Among them was Chief of Medicine Erwin Smith, who Eren was sure Armin had a crush on. Levi looked disinterested, but Eren stood firm.

"Um…thank you for helping me yesterday, will you please go out with me?" It took two seconds for him to realize what he had said. The two women at the table were almost giggling at him. His ears went red, sputtering as he tried to correct and undo the damage. "F-f-for coffee! Nothing more!"

Surprisingly, he received a smirk from the surgeon.

"Sure." It sounded sarcastic. Eren wasn't the only one who was surprised.

Over coffee on their day off, Eren thought they were bonding pretty well in the last three hours. Levi's attitude didn't bother him as much as it did before and he started to become a little more pleasant to be around. The one thing he truly learned from Levi was how much of a damn neat freak he was. That was good being that they were doctors and cleanliness was never stressed enough. He needed more hands to count how many times Levi cleaned the table when they arrived, got their coffee and talked. Eren's tongue gradually became looser as they continued to talk, ranting about certain patients to how annoying his personal life can get despite becoming a doctor at the ripe age of 22. Since Eren was a new doctor, Levi asked what he thought about the Hippocratic Oath. Though a strange question, Eren answered as any would, to treat others without judging their character. But Levi suddenly had a distant look on his face.

"Eren, this Hippocratic Oath we take tends to bend depending on how we perceive it. Keeping it to how we do matters on your will." Eren blinked innocently.

"Levi-san?" Nothing was said anymore for the rest of the date.

A few weeks later after their coffee date, the two spent more time during breaks and their days off together. Eren liked the company and felt more and more comfortable with Levi as they went from opposite ends on the couch to next to one another with someone's head on the other's lap. Eren jumped and dropped his sandwich when his office door was kicked open to reveal a very moody Levi.

"Oi, we're dating now. Got it?" Behind him, his physician assistant Petra and medical researcher Hanji were giggling uncontrollably. Eren and Armin blinked in surprise. Without waiting for an answer, Levi slammed the door shut. Armin began to laugh at Eren's confused face.

"Levi-san's word is law around here, Eren! Remember to invite me to the wedding!" A blush bloomed on his cheeks.

"ARMIN!"

Eren was extremely nervous as his adopted sister Mikasa glared at Levi from across the table in the restaurant. Mikasa ran her own gym in Trost, capable of taking down guys twice her size in two single moves. 'I could take on this midget,' she thought darkly as she buried her scowl behind the scarf Eren had given her. She didn't like the guy one bit. He gave off a vibe she couldn't put a finger on, but she didn't like it.

Levi hadn't given her much of a warm welcome either. Eren wanted him to make a good impression since it was his sister and the two were really close. He couldn't care less.

"I don't like him, Eren," said Mikasa flatly.

"Your sister's a bitch," Levi replied just as monotonously. Eren sighed. He knew this wasn't a good idea.

Things were getting more serious. In both the hospital and their relationship. The hospital had received several people involved in what looked to be a gang fight. Every doctor on call was treating the wounds and sending people into surgery for serious injuries. Eren's some-of-the-time friend/childhood douchebag Jean was among those with less serious injuries, a bullet in his shoulder as Eren was treating him.

"I was just walking with Marco when we got sucked into a fight going on in the street. We recognized Connie so we went to help. One of those bastards pulled out a gun and shot me. Fuck dude!" he shrieked when Eren pressed the bandage to his wound. Eren clicked his tongue.

"Sorry. Marco and Connie are gonna be okay though." Hearing that they would be, Jean sighed.

"Thank God. I heard the fight was between Recon and some other small gang wanting in on their turf." Eren had heard of Recon, the heart of Trost's underground that dealt heavily in crime, business and smuggled weapons across the country. They were famed for their torture methods that Eren luckily had never seen. Jean continued.

"The Recon members kept talking about how they were going to take the other guys to Heichou." He winced when Eren helped him off the hospital bed.

"Who's Heichou?" he asked, making sure he could stand. Jean kept his arm around his shoulders to steady himself.

"Jesus, where the fuck have you been? Heichou's the boss. He's the reason why they have torturing in Recon. It's apparently the best way to get information." The thought of torturing another human being made Eren sick.

"Is it really as bad as they say it is?" Jean made a sick face, looking around the busy room to check if they were being watched.

"Yeah. I actually-" He was cut off when Levi yanked back the curtain. He looked pretty tired and didn't want to hear any objections, a face mask covering his mouth and with blood on his scrubs. He looked like a crazed killer.

"Are you done here, brat? There are still some shits around here with bullets in them and some need stitches. If this fucker's done, send him home." Eren quickly nodded and Levi left, glaring at Jean's arm around his boyfriend's shoulders.

A few days later, Jean and Marco went to visit Armin and Eren during their lunch break. Levi was in the middle of surgery and couldn't be with Eren. Oddly enough, the members of the gang against Recon had made a quick recovery and left the hospital to different physical therapy facilities to finish the rest of their healing. But none of them looked stable enough to leave. Eren thought so since one of the guys he was treating kept freaking out that Heichou was going to find him there. Armin's nearly tore his coat off him when he begged him to help hide from Heichou, blood smearing all over the coat. Several nurses had to help pry the man off as gently as possible.

Jean pulled out his phone, making sure no one was watching.

"Remember how we talked about Heichou? So I found a picture leaked online last night and this guy was killed after being tortured. The picture got taken down in an hour, but I saved it on my phone." Armin suppressed his gasp.

"Jean! This is a place of healing! Put that away!" But Eren and Marco were far too curious for their own good. The picture froze Eren's heart. In the picture was a man naked on a metal table. One eye was missing, plucked out and lying next to the victim's head. The mouth was open, a handful of teeth missing. The fingernails were ripped clean off and both pinkies were chopped off. The arms had needle holes poked here and there, burn marks surrounding them. The soles of the feet had been sawed off with the heel bones in clear view and were fractured with what seemed to be a small hammer. Any more detail and Eren swore he was going to throw up. He looked away, sickness rearing in his throat. Armin couldn't resist and looked at Jean's phone, going pale when he saw the victim's face.

"That's the patient that I treated when you guys were here." Their table fell silent in shock.

Later that day, Eren was still pretty spooked over the picture as he curled on Levi's couch. He jerked a little when Levi sat next to him, the latter raising a brow when he did.

"What's wrong?" he asked, voice laced with fatigue. Eren slowly shook his head. Levi spent a lot of time doing surgery and didn't have to be bothered by something that wasn't their business.

"Nothing. Just stressed out from work." Levi smirked.

"Aren't we both? Come here. I think I know something we can do to relax…" Something about his words sent shivers down his spine.

An hour later

"Ah! Levi…more." Levi panted in his ear as he was trying to hold himself back from pounding senselessly into him.

"Ha. Demanding now, aren't we? You little shit." He grunted and slung Eren's leg over his shoulder, his lover on his side. Eren could feel his cock sliding deeper within him with each thrust. His wanton scream echoed off the walls of Levi's suite.

Months later, Eren leaned into Levi's embrace at night, both naked under the sheets. He had moved into Levi's place days ago and it was the first time Eren felt more in love with someone than ever. Levi loved him and listened to whatever was on Eren's mind. He was good at listening and consoled him whenever he was feeling down, especially when a patient passed away while Eren was fighting hard to save them. He would be far more depressed if Levi wasn't there supporting him. He smiled to himself, nuzzling into Levi's neck as he felt himself growing hard thinking about Levi's way of comfort and de-stressing. He sat up and straddled him, his older boyfriend still asleep.

He was horny and didn't want to wake him up. He slowly grinded his ass against Levi's cock, left hand reaching down to grab his own and began to massage it, his right keeping him steady above him. He bit his lower lip to keep himself quiet, rocking himself fast enough to keep him sated and to keep Levi from waking up. A few stray moans escaped his mouth as he imagined Levi's hand instead of his and riding on him while his cock hit his prostate with each thrust.

"Nnh-uh…Levi…" His eyes were closed as he imagined Levi thrusting into his tight hole. His eyes snapped open when he felt a hand grabbing his off his cock. He stopped rocking his hips when he saw Levi's smirk.

"All you brats think about is sex these days." Eren grinned naughtily, gyrating his hips.

"You're the one who got me addicted." Levi gave him a small smile, thrusting his hips to Eren's. Eren moaned when he realized Levi was erect, then something worked his way up his left ring finger. He looked down and saw Levi sliding a silver and diamond spiral engagement ring.

"Levi?!" he gasped, crying out when his lover thrust into him.

"Eren, will you marry me?" he asked softly, pounding into him from below. He forced Eren's hips down and immediately made contact with his prostate, Eren tightening incredibly. Eren saw white as he moved his hips with Levi's thrusts, riding him uncontrollably to feel Levi's hard cock inside him.

"Lev-ngh…cum inside me!" he begged. Levi suddenly stopped, prompting Eren to whine and try to force himself down on Levi's cock. But Levi gripped his hips so he couldn't move.

"Answer me first and then I'll cum just like you want me to." Desire clouded his mind and he became far needier to feel his boyfriend's cock. But yes, he wanted to be with him for the rest of his life.

"Ah-yes! Yes! I'll marry you! Please fuck me!" Levi smirked.

"Good boy." Eren cried out when Levi thrust hard into him, making him cum all over his chest.

Their wedding later on was an affair Eren couldn't stop smiling about. Mikasa decided to grin and bear with it for his sake and got along with Levi just enough to agree that Eren looked amazing in his wedding tux. Hanji and Petra were helping Levi straighten his tie while Erwin decided to go flirt with Armin at the open bar, his hand casually on top of the younger man's. Jean and Marco were dancing around with Krista, Ymir, Connie and Sasha. Levi's other assistants Eld, Gunther and Oruo were playing security team and kicking out whoever they thought was causing trouble for the wedding. Bertolt and Reiner were doing the same as Eren's team. Eren's parents Grisha and Carla were beaming happily at their son's happiness. Eren's childhood friend Annie was helping him with his tie and gave him a small smile to congratulate him. He gave her a bigger one in turn and rushed out to join Levi and made his vows to be with him until death do they part. They exchanged wedding rings with their vows, Levi sliding a new ring onto the place where his engagement ring used to be. The ring was gold with diamonds and sapphires forming what looked like wings on the top. He loved the ring and was surprised that Levi had picked the design, taking the duplicate and placing it on Levi's.

They spent the next half year happy together. Eren and Levi told each other almost everything and things looked like they were only going up. And when I say 'almost' and 'looked,' I mean that Eren was in for a rough awakening.

Levi split his days off between spending them with Eren and working more overtime with Hanji for research at the hospitals lab. Eren didn't mind. Levi wasn't the best for nothing. But he was concerned because there would be days that Levi didn't come home until the next afternoon. And when he came home, he was tired and stressed. But still, he managed to smile at him and sleep soundly as long as Eren was with him.

His work brought in another gang member against Recon and he had treated him as diligently as possible, ignoring the man's crass remarks about Eren's supple ass and how close he was to taking out Recon's men despite getting his ass handed to him. He even spouted some nonsense on having blackmail on Heichou, stating that Eren might give his ass up to him once he took over Recon. He stopped making remarks when he looked at Eren's hand, staring at him like he was Death himself. He wasn't sure why, maybe because there was a syringe ready to shoot the loud fucker. The man had suffered a gunshot to the leg and a barrage of bruises from being beaten half to death, shattering three ribs and snapping his humerus in two places. He had to stay in the hospital for the next week to recover and undergo surgery, but he received papers noting that the patient be moved to a physical therapy facility despite still needing surgery.

Eren shook his head as he read the file with Armin, fingering his wedding ring as he thought.

"He shouldn't have been moved. He's my patient. Who signed the release?" he asked roughly. The flustered nurse shakily shrugged.

"I don't know, Dr. Ackerman. I was just told that the patient was to be transferred right after you found him a bed." Eren frowned and slammed the file down.

"I didn't sign the release. And the patient needs surgery for the bullet piercing his femur. He's in no shape to change hospitals under short notice." Armin pulled him away from the nurse.

"You know what's strange? Most gang members are assigned to physical therapy facilities after they've been stabilized. Remember my patient a year ago? He was found dead after he left the hospital." He was right about that. Eren narrowed his eyes.

"Yeah, but how does Recon have the power to take our patients after release? Even if the therapy places handed them over, they can't unless authorized to do so. Something's not right about this." There wasn't enough time to dwell on it when their pagers signaled that they were needed.

Eren had his face mask on while he was stitching up a cut for a teenager who was in a skateboarding accident. He couldn't help but think about his patient. The guy was a fucking creep, but he was his patient. The facilities didn't have equipment to give him the surgery he needed for his femur.

He finished the stitches and smiled at the kid, letting him be taken to a room to recuperate and check for other internal problems before going back to the file for the previous patient. He flipped to see where the man was taken and quickly jot down the facility name on a sticky note. He was just going to check and see if his patient was going to get the surgery he needed. 'Wings of Healing,' he thought, the name sounding familiar.

"Wings of Healing?" asked Levi when they met up for coffee in the hospital cafeteria. "It's a physical therapy clinic and rehab center. Why do you want to go there?"

Eren poured sugar into his coffee. "My patient's been transferred there and he shouldn't be. He's not ready for it since he was barely stabilized for his pain last night. There's so much to be done that physical therapy shouldn't be an option yet. I just want to ask if they are gonna give him osteopathic surgery for his femur."

Levi sighed. "Don't worry about it-"

"I can't," Eren cut him off. Levi tended to not care for the well-being of patients who were the scum of the earth. "He's still my patient and I didn't sign his release. I'm just worried."

For a moment, Levi looked ready to fight against him because of it. But he sighed and shook his head. "I'll go check for you. Erwin knows for sure if they'll give him the necessary treatment and I'll be there just in case. Just go home after work and I'll see you there, alright?"

Eren smiled, thankful that Levi was going to make sure for him. He gave him a kiss and stood up. "Are you going to come home tonight for dinner?"

Levi hummed in thought. "I hope so. But Hanji says that she thinks she's reached a breakthrough for an antidote. But you know how those end." Eren chuckled.

"Yeah, three hours of saying what she did and then one hour trying to convince you that it's a breakthrough." He gave him a light kiss. "Try to come home and rest. You've been doing long surgeries lately and don't rest as much as you need to."

Levi made a 'tch' sound. "I've been doing surgeries for years, brat. I'll be fine. You're still an amateur." The pout he loved was back on his face.

Eren had finally finished his work long past sunset. Armin was sleeping at his desk and had to stay a little longer, so he couldn't say goodbye so his friend could catch what little rest he could. An ER nurse ran up to wish him good night, bowing her head. He smiled.

"Oyasumi nasai." The nurse nodded to him, a polite grin on her face.

"I believe you're happy to head home now. Poor Dr. Ackerman can't leave the hospital until the research session is done, I hear. He hasn't left all day." His eyes widened. So Levi wouldn't have been able to check on his patient for him. Understandable. He's done a lot for the hospital and Eren could handle it on his own.

He drove to the physical therapy facility on his own. Only to be enraged when he saw that the building was closed. The file had said that it was a 24-hour clinic and as a doctor, visiting hours meant nothing to him. But the dark windows with only nightlights made him believe otherwise. Strangely enough, the door was unlocked and he silently slipped inside. 'If you're going to close, at least lock up properly,' he scolded in his mind. But as he slowly shut the door, he realized that he had no idea where to start. Maybe find his patient? But he couldn't just go opening doors and disturbing the other patients.

He started walking down the dimly lit halls and saw that all the doors were shut. They were all sleeping at this hour. But where could he go? The only door open throughout the whole floor was a dark stairway where he needed a flashlight. It had a security pad that usually needed a code to open the door, but it was already opened so…down he goes. 'Talk about the creeps,' he thought, quietly making his way down the stairs. This idea was going to get him fucked over. He stopped a few steps down. Fuck this, he was going to run outta here and check tomorrow. What was he going to do down there if there were no doctors or nurses making rounds? Determined, he turned back and started to go back up.

"He's getting his blood all over me. Disgusting. I thought the meds you gave him was supposed to keep him still." Levi's voice and whimpering came from the bottom of the stairs. Eren froze. 'Levi?'

"You said give him pain, so I made a pain inducer. You never said to keep him from moving," replied Hanji. Curious, Eren slowly headed back down the steps to their voices. At the bottom of the stairs was a hallway with a bright light coming from a different room. The voices got louder until he reached the doorway. His heart dropped and he felt sick to his stomach.

Levi, Hanji, Petra, Oruo, Eld, Gunter and Erwin were in the room together wearing lab aprons, gloves and face masks like in the hospital. They stood over Eren's patient, who was on a metal table and gagged. He tried screaming through the gag, shaking uncontrollably with sobs. His arms were covered in deep cuts with blood flowing freely from the wounds. Oruo was sticking a torch close to the bullet wound, the torch turned off. Everyone had a different torture instrument in their hands from scissors, scalpels and an autopsy saw. The patient's eyes were wide with fear, kicking around to try to get away from them. Levi frowned behind the mask and jerked his knee up, ramming the man's skull.

"Oi, shut the fuck up already. It's your fucking fault for trying to bluff saying you had shit on me." Eren covered his mouth with both hands. The patient had said earlier that he had dirt on Heichou. Did that mean…? Petra spoke next.

"Heichou, we made sure that it was a bluff, but apparently he already went around with rumors about you having traitors in our circle. We've dispatched several units to deal with them and we haven't located his leader yet." Levi scoffed.

"Then hurry up and find him."

"We're trying, sir."

'Holy shit.' Eren collapsed onto his knees. He married Heichou. This whole time he didn't know that his boyfriend, husband now, was Recon's leader. What the hell did he just get himself into?

The man on the table saw his movements, looking over with wide eyes. Eren froze, shaking his head and mentally begging for him not to give him away.

Too late.

The man screamed to him, getting their attention. Levi was getting annoyed.

"What the fuck are you screaming at?" He looked over to where the man was looking and saw Eren on the ground just outside the door. His jaw dropped, blood running cold. 'Fuck.'

"Eren..."

So there's chapter one! Please tell me what you think and again, I apologize for any confusion. Feel free to let me know if you were confused or have any concerns with this chapter. Next chapter preview:

"Who the fuck are you? No! Please! Don't kill me!"

"Wait for me at home. I promise I'll explain everything."

Mikasa. Help. House.