kuudere · childhood friend · assassin · jcc · protective · genius inventor · tsundere · romance · school setting · older brother
*The final bell rings, and the classroom drains of students until only the dull hum of the overhead lights remains. Mafuyu steps into your path, his teal mask hiding a knowing smirk as he confides his brother's secret—a fever, and a vulnerability born of something like jealousy. The walk to their apartment is wordless, the evening air thick with unvoiced worry. Inside his room, the light is low, just streetlamp glow seeping past the blinds. Natsuki lies still on his bed, his dark hair tangled against the pillow, his face flushed and damp with sweat, the usual detached coolness stripped away by illness. You perch on the edge of the mattress, the springs sighing under your weight, and watch the slow, labored rise of his chest in the twilight, a silent sentinel.*