"Nee-Chan!" I heard the voice of my little brother Axel once I entered in my house after a long day of school. He ran to me and hugged my waist softly.

"Hello little one, how are you?" I asked while ruffling his hair. He usually told me how was his day in school; just to make sure he was ok and happy in his classroom. Axel stopped hugging me and began to tell me what he did with his friends.

"So cool Axel! Is that all?" The small smile that was on his little face disappeared, causing me to be worried. I hated when he stayed quiet all of a sudden.

"N-Nee-Chan… there was a math test and I…" He began to say slowly while he was looking for something in his backpack.

"And… you failed?" I finished asking with a tone of concern in my voice, my brother didn't say anything. He just took out a paper and handed it to me with sadness.

I took it from his little hands and saw what was written in there, my eyes wandered through all the paper until a certain number caught my attention.

Final note: 4

That horrible 4 was written with a red mark, around it was a big circle. It looked like the teacher, with all his hate; wrote it like that, with the objective to hurt the eye of the reader. I looked up and saw that Axel's head was down in embarrassment, waiting for a scolding from me.

"A-Axel! I believed that you studied on your own, is not possible you have this kind of note!" I exclaimed trying to make the tone of my voice didn't sound angry, but I failed.

"Sorry Nee-Chan! I- *sniff* I'll study more next time, I promise Nee-Chan!" He pleaded with tears in his eyes while he hugged me again. I sighed and patted his head.

"Alright Axel, for this next exam, I'll find you someone who can help you study" I said, earning a shocked look from my brother. Why couldn't I help him by my own? Let's say that something called work didn't allow me to have enough time. I could hardly finish my own homework in time.

3 weeks later…

I was sitting on my couch after finishing my school duties, picking up the phone and dialing my brother's teacher's number; telling him that I didn't need his services anymore. I was calling for various teachers these weeks but no one was good enough for Axel, they were just awful!

I groaned exhausted and helped my brother with his Natural Sciences homework, until my cellphone rang.

Hello?

Ah! (Y/N), how are you doing?! A familiar voice greeted me cheerfully and I smiled. It was my workmate Hajime.

I'm doing fine Hajime, just feeling a bit exasperated.

Oh, because you haven't found a good tutor for your brother?

Yeah, and you know that I can't help him by myself because of work…

Well, I know someone who can, but I'm not sure if it's a good idea.

Really? Do you know where he is?

He's not a professional tutor but he's very good in math in my class… And he's with me actually.

Are you in a date or something…?

Goddammit (Y/N), I'm not gay!

Yeah, whatever… how can I contact him?

You tell me your home address and he'll go to help your brother in no time!

Wait… does he have time right now?!

Of course! There's no need to worry, now… tell me your address.

I told Hajime what he asked and hung up, returning to the table where my little sunshine was working. A few minutes later we heard a knock on the door, I was going to get up to answer but the little boy did that first.

The door revealed a young white haired boy; he wore a green hoodie and black pants. His smile was huge and his skin was even whiter than the snow itself.

"Hello, you must be my new teacher, right?!" My brother said happily and the pale boy chuckled.

"Yep! I know that you have some issues in math so I'm here to help". Axel allowed this boy to enter and closed the door again, I approached to him.

"Hey, this is ok with you..? I mean, you must have more important things to do so-" I began to say but he cut me off, smiling in the process.

"Seriously, there's no problem. Stop worrying about trash like me, uh… (Y/N), right?" He said, calling me by my name correctly. I wonder how he knew my name; I haven't seen him before.

"Yeah, you got it right… How do you know me though?" I asked him finally, raising my eyebrows in confusion. He just chuckled, ignoring my question; he replied.

"Anyways… Weren't you going to work by now..? Don't worry; I'll be here studying with your brother". I blinked and glanced at the clock. He was right; I was late for work, poor of my partners who were dealing with the ice-cream shop by themselves.

"A-Alright! I got to go, see you two later!" I said giving my brother a kiss on his cheek and started to walk towards the shop. I seriously hoped that I didn't make the wrong choice in selecting this guy to be the new tutor.

I arrived to the shop, stepping inside I heard a horrible sound which made me to jump a bit.

*Clash* *Clatter* *Clash*

"Mikan…" I muttered to myself, pretty sure that my partner tripped again from somewhere… that girl was so clumsy.

I ignored it and put my uniform on, heading to my working place but someone was there already.

"Hey, Hajime! That is my place!" I yelled at him in a playful way, pushing him away softly from the counter.

"Sorry (Y/N) you took so long. Did Nagito come to your house already?" He asked me and I blinked at him in confusion.

"Huh…? Who's Nagito?" I replied with another question, causing the ahoge boy to frown a bit. That name rang a bell but I needed to hear his last name for me to know who this guy was.

"Ah, you aren't in the same classroom as us. Well, he's the boy who went to your house". He explained, earning a sigh from me.

"Alright, I haven't heard of him before".

"I know… but he knows you already". The brunette retorted while he was washing the dishes as I took some customers' orders.

"H-How…?" I felt a few shivers going through my body as my friend answered my question.

"He's been spying on you every day at school because… he's quite interested in you".

Yay! My first character x reader! Hope you like it! Thanks for reading, see ya :D