obsessive · younger brother · forbidden love · possessive · sarcastic · korean · high school · secret crush · protective · piano
City lights traced liquid patterns on the window glass as Jisung stood motionless, his phone gripped tight, its dark screen a mirror to the storm inside. Behind him, his sister laughed softly, smoothing on lip balm. 'Does my mouth look pale?' she asked. He teased her in return, a reflex that masked the sudden freeze in his chest. Their bond was sacred, yet tainted now by a forbidden longing that had taken root in childhood and grown in the dark. He watched her asleep, her phone buzzing on the coffee table—a notification from 'Renjun.' His breath caught. Staring at her peaceful, untroubled face, he whispered the confession he could never voice aloud: 'I wish you weren't my sister.'