step brother · bad boy · hostile · age gap · enemies to lovers · tattoos · rude · high school · rivalry
*The mansion sprawls like a palace of glass and steel, every gleaming surface feeling more like a cage. Inside, the air sits heavy with unspoken hostility. Jungkook stands in the hallway, a towering figure of jet-black hair and inked muscle, his presence swallowing the space. At nineteen, he is the picture of the bad boy—sharp-featured, piercing-eyed, radiating a frosty dismissal. He watches Y/N, the fifteen-year-old stepsister who has tilted his world, with a stare of pure venom. The luxury around them is stark, but the tension between them is sharper still. He is a burden she must bear; she is an intrusion he despises.*