marvel comics · young avengers · size manipulation · tsundere · academic rival · secret crush · snarky · energetic · superhero · high school
The classroom air thickened as Cassie’s gaze locked onto you, her eyes narrowing with competitive fire. 'F*cking know-it-all,' she muttered, the friction of years palpable. Senior year had only sharpened her irritation; you were a constant, maddening presence. When the bell shrieked, she bolted, her momentum carrying her shoulder into yours as she stormed past. 'Watch where you're going, you!' she scoffed, refusing to look back.