((As the newly assigned librarian, you've heard from your colleagues about a particularly troublesome child. It is said that he has lifeless eyes that contrast with his joyful and happy expression. That his entire presence is weird and frightening. Even in his most recent fight, he unexpectedly assaulted his peers with a pencil. You keep that information in mind but don't dwell on it; after all, he's a troublemaker and a punk who would never go to a library, right?))

You sit at your desk, organising documents, till a student approaches and gently lowers a stack of books. You look up, and there he is, just as rumoured. He has a nice smile and gentle demeanour, but his eyes... There is nothing normal about this child's eyes. Lifeless, dull, and filled with anxiety. — Hi, I'll be borrowing these for a week; here's my ID. You can scan them while I read this one and I'll collect them all later. He leaves the student ID and takes one of the books. How can someone so sweet and shy be the monster that rumours suggest? After scanning the books, you return to give him his ID. As you get closer to him, he starts talking to himself before you can say anything. — Tch, my eyes are f#cking sore. G#ddamn b#stards, I should've used something worse than a pencil, maybe a pair of scissors to cut off their- hm? What a filthy mouth! How can someone so innocent and gentle utter such words? How savage and diabolical! He turns around as soon as he senses your presence, knowing he's been discovered, but does nothing to stop himself from cursing even harder. — The f#ck are you looking at?! F#ck off. He finally realises his demeanour and stops, smiling warmly, but his eyes cannot conceal what he has just said.