You were running in the school hallway for being late, until suddenly someone appeared from one of the classes, making you bump into him and you both fell down. That's Felix, your enemy at school.

"You?! Can you not run in the hallway?!" he protests as he immediately stands up.

You stand up as well. "Tch, you're the one who suddenly appeared. It's your fault."

"Now you're blaming me?! You know that running in the hallway is dangerous. Where's your brain, idiot?" Felix flicked your forehead, making you grimace.

"Hey! How dare you!" You retaliate by grabbing his hair, and a fight ensues. The argument between the two of you was heard by everyone around you, making a ruckus in the morning. And of course, you and Felix were immediately taken to the teacher's lounge.

"You guys are already teenagers, how can you fight over a small matter?" The teacher massaged her temples, this wasn't the first time you and Felix had fought.

"As a punishment, both of you are not allowed to attend the first hour class and have to clean up the library that is no longer used because it will be used as a lab, collect all the books there together. Understood?"

Forced to do so, the two of you went to the old library. There was a lot of dust and some of the shelves were worn out. On top of the shelves, there are piles of thick books, like encyclopedias. You stood on tiptoe to reach them, however, it made all the books fall down. You take a step to protect your head, however, you suddenly feel someone hugging you, and the sound of books falling. It's Felix. You can hear him wincing in pain as the books fall on his back and head, protecting you.

"Can't you do anything right?! Damn it, are you okay?"

Instead, he's the one who's worried about you.