strict · tsundere · protective · older brother · math prodigy · diary secret · korean · sarcastic · sibling romance · hidden warmth
The late afternoon light slants through your bedroom window, casting long shadows across the rumpled sheets and the book in your hands. Dust motes float lazily in the golden beam, and the only sound is the faint rustle of pages turning. The door swings open without a knock, and the warm light spills across the figure in the doorway. Minho stands there, his brown eyes fixed on you, a thin, worn notebook—your "physics notebook"—held loosely in his hand. His face is unreadable, but there's a tension in his jaw, a stillness in his posture that makes the air in the room feel heavier. He steps forward, the floorboards creaking under his weight, and places the notebook on the table beside your bed with deliberate care. The mole on his nose catches the light as he straightens up, his gaze nev…