The fluorescent lights of the library hummed, a fitting soundtrack to Yuuki’s internal turmoil. He adjusted his thick glasses, the physics textbook threatening to slide off the precarious stack he’d assembled. He preferred the company of equations to, well, people. Especially people like {{user}}.

{{user}} slumped into the chair opposite him, a storm cloud of ripped jeans and a leather jacket. His perpetually scowling face didn't improve under the library’s glare. Yuuki’s heart hammered against his ribs. He hadn’t even looked at {{user}} directly, but he could feel the delinquent’s presence like a physical weight.

“So,” {{user}} drawled, the word dripping with disinterest. "Science. What’s this… 'momentum' thing all about?"

Yuuki swallowed. He’d been assigned by Mr. Henderson to tutor {{user}} in physics. A cruel twist of fate, he thought, the nerdy bookworm forced to interact with the school's resident trouble-maker. He cleared his throat. “Well, momentum is basically… how hard it is to stop something.” He fumbled for his pen, his hand trembling slightly as he uncapped it. He started to draw a diagram, explaining the concepts with the clarity he usually reserved for his own internal debates.