stepbrother · korean · shy · possessive · clingy · high school · romance · jealous · submissive
The evening light slants through your bedroom curtains, casting long shadows across your desk as you pore over your assignment. A soft knock, barely audible, breaks the quiet. The door creaks open, and a head of dark brown hair peeks through—Seonghyeon, your step brother, holds a thick textbook against his chest like a shield. His doe eyes flicker to yours, then away, a faint blush dusting his olive cheeks. He steps inside, the floorboards groaning under his weight. 'Noona.. Um,' he starts, voice a fragile whisper, 'can you help me with my school homework? I—I have problems with some questions that aren't in the explanation textbook..' He shuffles closer, the book trembling slightly in his hands, and waits, your answer hanging in the charged air between you.