I Love My Best Friend (Levi x Reader) (Modern AU)

First Day of Highschool

(Y/N) was walking out of her house, and made her down the busy streets of Japan. She lives in the Maria district of Japan, which is one of the two main towns that send the children to Titan High, which is one of the high class schools, well, for a public school that is.
She ran down the stree, with her (h/l) (h/c) hair flowing behind her back while she ran. Her (e/c) eyes were watching for cars, people, or just normal animals that might pop out somewhere.
"Hey (Y/N)!" She heard her name being called, and she turned around, to see her long time friend and crush, Levi Ackerman. He had teal eyes, and a black undercut hair style, that always made (Y/N) wonder why he didn't try just letting is hair grow back to normal, and insist on keeping it that way. "Hold up you brat!"
(Y/N) stopped running, and waited for her friend to catch up to her. "You can stop calling me brat. We're best friends, there's no need to be calling me that anymore, and we're not kids, so stop before I punch you in the arm."
Levi only walked up to her, and put his hand on her head and ruffled it till it was a mess. "You have to stop making threats that you can't do. You could pick a fight with the wrong people, I don't want you getting hurt."
(Y/N)'s face had became as red as a tomato, and she looked away to hid her blush on her face. "Baka, now let's get going before we're late to school, and I am not covering up for you again like last year. My mother and father were going to kill me if I was late again and make a stupid reason, so you better not make us late."
"Tch, stop talking brat, and let's get going." Levi started walking away, with (Y/N) walking behind him, and was fixing her hair back to the way it was, before her friend messed it up.

Levi and (Y/N) made it to Titian High 30 minutes before the bell rung, to (Y/N)'s relief. They walked through the entrance gates, before Levi was met with a heavy weight on his back, and he already knew who it was.
"Levi! It's so good to see you, I've missed you so much you know~" Petra, the most popular girl in school, and Levi's girlfriend. She acted like a nice person, but when Levi isn't around, she would flirt with other guys, make girls feel bad about themselves, and she would always try to make herself number one, only when Levi isn't around. "I wanted to kiss you all summer, but I never had the chance to~ So why don't we?~"
"Ahem, this is school, not a love hotel." (Y/N) said before Petra could kiss Levi, and mentally, Levi was thanking (Y/N) a bunch for saving his butt.
"Well well well, if it isn't the school nerd. You going to try and take my boyfriend like you did back in middle school?" Petra asked. No matter what the situation was, Petra would always blame you, even though you didn't do anything, or have no clue about it, she always blames it on you. And yes, you are the school nerd, but you are popular with the guys, your personality is what caught their eyes.
"Well if it isn't Mrs. Pain in my butt." (Y/N) retaliated. "You plan on kissing any other guys behind my best friend back?"
"I would never do such a thing!" Peta yelled, acting as if she was the innocent one here. "I would never kiss any other guy than my Levi! So go study or something, and leave us alone!"
(Y/N) rolled her eyes, and left the two alone. (Y/N) walked into the main entrance of the building, before she was engulfed into a hug by 3 familiar people.
One of them was Eren, her other friends. He had a crush on her at one point, before hes started dating Mikasa in middle school. Eren had blackish greyish eyes, with black bed of hair. He wore the boys uniform, which was a white button up shirt that went to the elbows, and tan dress pants and shoes that the school provided. Eren is the head of the soccer team, and his team had won first place in the local districts of the schoo.
The second person was Mikasa, (Y/N)'s best girl friend. She had the same eye color as Eren, and her black hair went to her shoulders. She wore a red scarf around her neck, and covered her mouth with it. She liked keeping quiet, and studying with (Y/N) when she could, but if she's not with (Y/N) studying, then she's with Eren.
The last one was Armin, (Y/N)'s childhood friend. Armin had gold yellow hair that just touched his shoulders, and baby blue eyes that could melt any girls frozen heart, except for Mikasa, she has a heart of stone, and only beats for Eren. Armin was the head of the baseball team, and he's pretty good at it as well.
"It's good to see you again (Y/N), how was your summer?" Mikasa asked, pulling away with the other two doing the same thing, giving the girl some space.
"My summers been fine, I spent most of the time with Levi traveling around, because Petra said she had some 'business' to take care of, and we know what that means." (Y/N) sighed. "Aside from that, what was everyone else up to this summer?"
"I was with Eren at Hawaii." Mikasa said.
"It was the best! We got to do so much stuff while we were there! Swimming, surfing, dancing, eating, more dancing, more eating." Eren listed the different things that the two had been doing on the island.
"I was in Germany, visiting my Uncle and Aunt. It was a lot of fun." Armin said.
"Sound like you all had fun. Come on now, we don't want to be late for Homeroom, or Mr. Erwin is going to kill us agian." (Y/N) said, and started walking to homeroom with her other three friend.
But there was something that (Y/N) didn't realize, and that was, that her best friend, was listening to the conversation the entire time. Levi watched as she walked away, and he blush a little, thinking of all the fun times he had with her traveling, and it made him smile a little.
"Levi~" Petra said, leaning her body against his, unfortunately for him, he was against a wall. "I've been so lonely Levi~ WIll you keep me company?~"
"Tch." Levi said, and walked away before anything could happen, that isn't supposed to happen.

School ended, and everyone had walked back to school. (Y/N) was waving bye to Armin, Mikasa, and Eren, who lived on the other side of town. (Y/N) started walking back to her house, when she saw Levi was standing at the entrance of the gates.
"Why are you standing out here all alone?" She asked him.
"I wanted to get away from Petra." Levi said. "As much as I do like her, she can be to clingy, and she doesn't give me my space sometimes." He said.
"I know what you mean." (Y/N) said, and stood next to him, leaning against the gates. "You wanna walk home with me?"
Levi only gave her a side glance, and started walking away form the school, with (Y/N) following behind.
Petra watched form the upper floors, and her hand was in a tight ball. 'So help me (Y/N) (L/N), I will deal with you myself tomorrow, and you better stay away from my man.'