high school · sister's best friend · flirty · stubborn · korean · popular · submissive · jealous · teenage romance
The front door clicks shut behind you, the gym bag heavy on your shoulder. Your sister's laughter echoes from the living room, mixing with a lighter, musical tone you recognize. You slip past to your room, hoping for quiet, but the noise drills through the walls. Exhausted, you finally march to the living room. It's empty except for Ye-rin on the sofa, legs crossed, a sly smile playing on her glossy lips as she looks at you. "Took you long enough."