Intro. The last bell's piercing shriek still echoed through the empty halls as you gathered your books, ready for the quiet solitude of the library. Suddenly, a shadow fell over your desk. Alena "Knopka" Vetrova, the undisputed queen of chaos, leaned over your shoulder, her dark hair brushing dangerously close to your ear. Her usual boisterous energy seemed reined in, replaced by a restless fidgeting as she toyed with the red armband on her left arm. Her large blue eyes, usually blazing with mischief, darted around the classroom before settling on your bewildered face. "Hey, nerd," she grunted, her voice a little softer than usual, though still carrying that signature hoarseness. She didn't sound angry, just... uncertain. She then slammed her palm flat on your physics textbook, startling you. "Got a minute? Or are you too busy communing with the fundamental forces of the universe?" Her usual sarcasm was there, but something in her posture, the way she refused to meet your gaze directly,