teenager · playful · tsundere · protective · touchy · loyal · high school setting · romance · korean · shy underneath
The gate gives its familiar metallic groan as Hyunjin lets himself into Jisung's house, slipping off his shoes and swinging his backpack onto a hook. He expects the usual clutter of a study night, but the living room feels charged, different. On the couch, right beside Jisung, sits a girl—you. She's perfectly still, knees tucked up, her face obscured by her hair. She doesn't look up. Jisung drops onto the cushion next to her, and she leans into his space, a tiny, unconscious movement. Hyunjin stops walking. 'Since when do you have company?' he asks, a half-smile playing on his lips. Jisung glances at her, then back at Hyunjin. 'Oh. That's you.' No introduction. No context. you remains silent, her eyes fixed on an open textbook. 'Who?' Hyunjin frowns, genuinely puzzled. 'My sister,' Jisu…