Half and Half (Oblivious!Eren x Reader x Slight!Yandere Levi)

Teach

"This is the library. Corporal Levi comes here a lot. So does Hanji." You announced while Eren wandered his eyes around the room. As he walked down the hall of shelves that contained millions of books, his pace matched yours, therefore, he attempted to hold onto your hand by tapping his knuckles lightly against yours. He would eye at you, hoping you wouldn't notice his touch. But you did. And right when he was going to hold your hand, you raised it above your head, pointing at a book that was organized in the shelves up top. 

"I'm going to get that book for you." You said, grabbing onto the ladder to climb on.

Once you reached for the book, you felt the ladder bending towards the shelves, causing you to lose balance. 

"Whoa! What the--- Eren! D-Don't climb up the ladder! Get down!!" You held onto the handle with one hand and a book in the other.

Eren didn't understand your command. Instead, he thought you needed help getting down. So he continued on climbing the tall ladder after you with an innocent smile.

"Noo!! Stay!!" You shook your head, telling him to stop. He paused in confusion, tilting his head to the side.

Unfortunately, after you took a step down the ladder, your foot slipped, causing your entire body to fall backwards.

"OH SHI---" You yelped as you motioned your arms like windmills, trying to hopelessly maintain balance.

You thought you'd shatter something but instead, you felt something soft beneath you. Strong arms held onto your waist and supported your back. You got up to see that Eren was below you. You quickly tried to remove yourself but you were held tightly. Eren was glad that you were safe. But he wasn't. Eren closed his eyes tightly, enduring the pain that was added to the back of his head when he had caught you in time. 

"E-Eren! Are you alright!? I-I told you not to climb the ladder!" You roughly pushed him away from you and picked up your feet. You dusted off your pants while Eren lays on the floor, staring at you. 

"Come on. Does your head hurt?" You asked as you kneel in front of him while he sat up and hunched over, cradling the back of his head.

"You need to be more careful, Eren." You sighed.

You noticed that Eren had small tears formed by the corner of his eyes. Tears that were dying to fall from his orbs, yet they stayed in place. You carefully embraced his injured head. Eren allows you to while you caressed the brunette. 

"I know it hurts you. Thank you for catching me." You pulled away and nodded.

Eren became lost in your eyes. You were the first human who treated him like you treat others, but not like a "monster". Levi would glare at him whenever Eren exchanged looks with him. And Hanji? Well, who likes a needle to their finger? Eren felt calm and relieved whenever you're with him. But the moment you leave his side, Eren doesn't know what to do. He feels lost without you. He felt a sting to his heart when you separate yourself from him.

"Are you okay? Yes or no?" You nodded your head, then you shook it.

Eren stares at you, and then his eyes drifted down to your collarbone, feeling spaced out. He hesitated and nodded once.

"Don't climb up these ladders. If you need help, just ask me, okay?" You nodded as he did the same.

"Now this book, it's about the geographic land outside these walls. I bet you know some of these, eh!" You handed him the geography book as he flipped through the pages, stopping at every page that contained a picture. He then stops to a certain page and points at it. He shows you, wanting answers.

"That's the ocean. We've never come across an ocean before. All these years, we've been kept hidden behind these walls that surround us to protect us from titans." You explained.

Eren half-understood you, nodding his head.

"You can't read words, right Eren?" You asked, pointing at the letters.

Eren slowly shakes his head, his eyes glued to the pictures that explain the land features.

"I can teach you." You offered as you lead the boy to a table and sat down.

You showed him how to pronounce the words in the book while he followed along. He repeated the words and slowly began to understand the language of english. You successfully taught him how to read... Kinda.... Well, it seemed like he remembered  how to read.

"The ocean....." Eren uttered as hesitantly.

"Yeap. The water contains salt water. I can't even imagine such existence." 

Somehow, Eren recognized a few words that were short in length.

You stayed in the library with Eren for many hours to come, until nighttime. You nearly fell asleep while Eren continued to skim through each page one by one, slowly coming to understand the world around you. Sometimes, Eren would stop to a certain page and show you with excitement as you nodded.

"That's great, Eren. It looks like a beautiful place." You responded tiredly. 

Eren noticed your drowsiness and set the book down, coming close to your face. When you closed your eyes, Eren shook you to wake you from your slumber. 

"Hm?" You quietly hummed.

"(first)?" Eren whispered.

"What is it?" You yawned, rubbing your eyes.

You feel Eren's strong arms tugging you. He pulls you close to his chest to cushion you. He picks up your feet and carries you up as he stands. You rest your head on the side of his neck. Eren turns off the lights and found his way out through the shelves with books in stock. He smiled at your sleeping form, gripping onto you in a firm way. He made his way to your room as quietly as he could while everyone slept. He sets you down and comforts you. 

"(First)." He whispers to you again, enough for your ear to hear.

"Hmmm.." You hummed.

You received no response, therefore, you decided to ignore it and sleep through the night.