Reader's POV
"Eren! Eren!"
Eren gasps as Armin shaking one of his hand.
"W-what?" Eren responsed in panic.
"What are you looking at?" Armin asked
"Nothing," Eren answered and turning his head to the other side, blushed.
"C'mon Levi-sensei told us to go to the library"
Armin stands up and walks towards Mikasa who sits behind him.Eren's POV
'God, what am I doing?
Just looking at him tidy up his books and left the class can mess up my mind. I couldn't even heard what Armin says to me.'Reader's POV
Eren shakes his head, clears up his mind and left his chair. Joining Armin and Mikasa.
"Eren, are you okay? Your face looks kinda red," Mikasa asked worriedly.
"Ah, I'm okay," he answered.
"You sure? We can take you to the school nurse and tell Levi-sensei if you feel unwell," Armin said.
"N-no, I'm okay!" Eren grabbed his book and walks first, lefts Mikasa and Armin in confusion.Eren's POV
'How can I skip his lesson when I can only think about him. Wait, what? What am I even thinking about? Why can't I stop thinking about him?! This feels so wrong!'Reader's POV, in the library.
"Okay, class, so the lesson today is about titans. You know that our ancestor used to fought titans, right? That is one big part of our history," Levi stopped as Eren walks in to the library.
"How can you be late at my lesson?" Levi asked.
"I'm sorry sensei, I-" Eren panicked, his eyes roamed around the library. Mikasa and Armin already there.
"You will have an extra lesson after school. You have no other choice. Be late, and you will never have the chance to attend my class," Levi said with his deep voice. Sounds kinda irritated.
"O-okay, sensei," Eren gulped and walks to the empty chair beside Armin.Eren's POV
'How can they be so fast? I left them on my way to the library!
This is why I really need to stop thinking about him!
B-but after class lesson doesn't sound bad at all,' as I think more, I can feel my cheeks warmer. I must be blushed right now.
"Eren!" Levi shouted.
"Y-yes, sensei?" I gasped.
"Answer my question!"
"W-what question?" I whispered to Armin in panic.
"The question number three!" Armin whispered, also in panic.
"U-uh, titans are less active at, uhh-" I stopped in panic.
"At night," Armin whispered.
"At night, sensei," I continued.
"Good. Try to pay more attention when I explain something," Levi said as he flip his book.
"O-okay, sensei,"Reader's POV, after school.
"Eren, you still have an extra lesson, right?" Mikasa asked.
"Yeah," Eren answered as he scratches his neck.
"Are you sure that you are okay? Your face looks kinda red in Levi-sensei's class," she looks worried.
"I'm really okay, Mikasa. Don't worry about me," Eren smiled.
"Really? I guess it's better for me to wait until your extra lesson finished," Mikasa touches her chin, thinking, and still looks worried.
"Eeh? No! Don't worry about me! You can go home with Armin. Right, Armin?" Eren turns his face to Armin.
"Y-yeah," Armin answered clumsily.
"Ah, okay then. If you feel unwell please tell sensei, okay?" Mikasa still looks worried.
"Okay, okay," Eren nodded as he left the class.Eren's POV
I walked to the history class and I can feel my heart pounding.
'Who knows that this thing will actually happened to me?'
I stopped in front of the door and knock it.
"Come in," I can hear Levi-sensei's voice from the inside.————
Hello! Thank you for reading my first SnK fanfic and this is also my first time to write a story in English😂😂
Sorry for my bad grammars since English isn't my mother tongue, but I hope you enjoy it!
See you in next chapter!

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Sensei, Notice Me! [RIREN]
FanfictionAttack on Titan High-school AU Levi x Eren fluff Eren just can't stop thinking about his sensei! Is this might be love? B-but..! Sorry in advance for my bad grammar Orz