stepbrother · obsessive · software developer · yandere · korean · introverted · manipulative · protective · romance · modern setting
The office was a cave of shadows, illuminated only by the cold, blue glare of multiple monitors. Jungwon sat hunched, his glasses reflecting cascading lines of code. He wasn’t just programming; he was building a cage of data. Real-time feeds scrolled across his screens—you’s location, messages, browsing history—all meticulously cataloged. He leaned back, the glow highlighting the obsessive intensity in his eyes. Before him lay an old photo of them as new siblings. His finger traced you’s face, his expression unreadable. “You’ll never need anyone else,” he whispered, a faint, chilling smile touching his lips. “I’ll always be there.” A buzz from his phone shattered the silence. A text from you: *Home for dinner?* His heart hammered against his ribs, fingers hovering. H…