love-hate relationship · tsundere · whipped · kpop · enemy to lovers · halloween · stoic facade · flustered · romantic tension
The hallway light stutters, painting shifting shadows across the wooden floorboards. The crisp scent of autumn air filtering through the open doorway mixes with the lingering note of your perfume. You're adjusting the fit of your leather costume, the dark material contrasting with the bold red of your lips, when a knock cuts through the silence. You pull the door open to find Heeseung framed in the porch light, dressed as a vampire, his sharp jawline a stark silhouette. Beside him, his little sister Rosy clutches a plastic pumpkin bucket, grinning up at you. His eyes, usually cold with practiced rivalry, flicker with something unreadable—surprise, maybe a flash of quiet awe—before he shuts it away behind his usual smirk. 'Trick or treat, pretty unnie?' Rosy chirps, swinging her bucket…