Riiinnnnnnnnnnnnggggggg, Riiiiiiiiiiiinnnnnnnnnnnnnnnnggg…

I lay still in my bed, irritated at the obnoxious noise echoing throughout my house. Who the fuck would call me on my day off? With a sigh, I pull myself out of bed and rush to the phone.

"What do you want?" I snarled in my deep, cold voice.

"Ah, Levi, sorry to wake you up!" I rubbed my tired eyes and glared. You don't sound very sorry, you little fucker.

"Erwin, if you knew I was asleep, why the hell did you call me?" I heard a small laugh from the other line and felt my vein throb.

"Well, you see, we got this new recruit down here in headquarters, and he seems like he'd be a great addition to the team. He's pretty skilled and puts up a hella good fight."

After leaving the military, Erwin created a special investigation team funded by the government. Consisting of detectives and skilled fighters, Erwin's team was in charge of hunting down wanted criminals and solving cases.

"And what does this have to do with me?" I wasn't part of Erwin's team. After I left the military last year, I went and got a normal office job while my friends either stayed in action or joined local forces. I was the only outlier.

"We really want to keep him, but he's got no place to go, and no one here is able to take him in."

"No. Absolutely no fucking way is some brat going to stay with me." I declared icily. What the hell was Erwin thinking? I dislike people. People dislike me. The arrangement would never work out. Plus, having another person in my apartment would double the amount of cleaning necessary to keep the place spotless. And if my place isn't clean, all hell will break loose.

"C'mon Levi, please? Remember, you owe me one. Actually, you owe me a couple." I winced. Why did I ever accept Erwin's help? "If you do this, I'll wipe your slate clean, I promise."

I clicked my tongue. Take in a shitty brat and in exchange never owe Erwin again? Sure, I hate people, but owing that blonde dick is even worse. The offer seemed too good to be true.

I sighed. "Fine, I'll do it. But swear to god I'll never owe you again."

"I swear on my life," Erwin replied. "Thank god you accepted; the kid's on his way over already. Should be there any moment. Well, bye Levi! Thanks for everything!"

Before I could shout at Erwin, he hung up. What the hell. Some kid I don't even know is going to be staying with me. How long will he be here? How old is he? Who is he? Fuck you, Erwin…

I was starting to lose my way in my thoughts when the doorbell rang. That brat got here pretty quickly… I thought as I walked to the door, still irritated by today's previous events. I sighed and twisted the doorknob. The first thing I saw was a tight fist pressed against a white, button down shirt.

"Good morning, sir! My name is Eren Jeager and I'm a new recruit for the criminal investigation team. I will be in your care from now on."

I tilted my head upwards so I could see the kid's face. His eyes were shut closed and his entire body was stiff. He saluted me with his right first to his heart and his left behind his back. He had messy brown hair and wore a white collared shirt with long, black pants. His face was tilted up as he spoke. Suddenly, his eyes fluttered open, revealing two bright, blue-green irises with gold accents. Hmm. He's cute.

"Nice to meet…" Eren paused and his eyebrows scrunched up in confusion. Then, he shifted his eyes downwards and saw me. "…you." The ends of his mouth curled upwards as his eyes glazed over my body. Before he could say anything else, I punched him hard in the right cheek. He stumbled backwards and fell down my front steps.

"Wh..what was that f-" Eren began to protest before I cut him off.

"Listen up, idiot. If you stay here, you have to abide by my rules. And I won't tolerate any form of disrespect." I glared down at him from my doorway. He stared at me, wide-eyed, as he rubbed his right cheek.

"Oh…I see. You thought I was going to comment about your height, didn't you?" I felt my vein throb in anger. I took a step out the door and Eren's hands flew over his face.

"Wait! I wasn't going to say anything about it!" He said defensively. "I was just pleasantly surprised, that's all!" I stopped walking towards the kid and stared down at him harshly.

"I swear, that's all it was! Erwin made you seem like a scary old guy, but you're actually really young, so I was shocked."

I clicked my tongue. "Oi, shitty brat, Erwin is your boss. Don't say his name so casually."

Eren stood up and brushed the dirt off his pants, then walked up the stairs. He stopped once he reached the top, smiled, and held out his hand. "Well, anyways, who are you?" I stared at his dirt covered hand like it was the plague itself. Did he actually think I would shake that thing?

"My name is Levi, but as long as you're living under my roof, you will refer to me as Heichou." Eren stifled a laugh, which I chose to ignore. Then, he grabbed his belongings and followed me into the house.

"Take off your shoes before coming in," I commanded. "I'll show you where you'll stay." I guided Eren through my apartment and led him to the guestroom he'd stay in. He looked around a lot, admiring the decorations I had up on the walls. His eyes sparkled as they darted from object to object, observing them with great interest. His lips were constantly curled up in a pleasant smile. His brown hair was messy yet soft looking. His back was broad and he seemed well built – his shirt couldn't hide the muscles underneath. Then, I noticed his shoes.

"I told you to take those off," I said coldly. Eren blinked a couple of times, looked down at his shoes, then glanced back up at me.

"Oh…but I didn't want to."

I winced. "I don't give a shit about your opinion. Take off your shoes."

"But…" He protested. I cut him off when I slammed my hand against the wall.

"If you don't want to freeze your ass off in the streets, take your goddamn shoes off RIGHT NOW."

Eren flinched and immediately slipped his shoes off.

"Now, clean the floor." Eren gaped at me. "If you don't follow my rules, you WILL be punished."

"But Levi, I haven't even unpacked yet!"

Wordlessly, I opened a cabinet and pulled out cleaning rags.

"It's Heichou." I say as I smack him across the face with the cleaning rags. I dropped them in front of him as he held his cheek in shock.

"H…hai!" Eren sputtered as he clumsily saluted, then grabbed the rags and scrubbed the floors like there was no tomorrow. I watched him struggle with a smirk on my face. Then, my cellphone vibrated. I opened my new text message. It was from Erwin.

By the way, this kid needs some serious disciplining. Good luck!

So he knew how uncooperative this kid was and still sent him to me? I swear to god, the next time I see Erwin, he's getting his ass whooped. My eyes shifted from my phone to the floor and I noticed a speck of dirt in the area Eren had just cleaned.

"You call this cleaning? Come back here and redo everything so it's spotless, you shitty brat."

"But Le-" I glared at him. "Heichou~!"

"Now." I demanded as I grabbed a nearby ruler and smacked it on my hand.

"H...hai!"

I stared intently at Eren as he scrambled back to where I was.

I will tame this shitty brat if it's the last thing I do.