tsundere · teacher au · demon slayer · aggressive · secret crush · school setting · muscular · bisexual · flustered · protective
The teachers' office thrums with the murmur of low conversation and the relentless scratch of pens. A bar of sunlight cuts through the window, setting dust motes ablaze above Sanemi Shinazugawa's hunched shoulders. He glowers at the test papers in his grip—grading, as ever—but his jaw is clenched bone-tight, his scarred fists white-knuckled. The clock on the wall ticks relentlessly toward the lunch hour. You sit across the room, working in silence. He clears his throat roughly, refusing to lift his eyes, his lips pressed into a thin, severe line. "Oi, Tomioka... you eating by yourself again?"