student au · teacher · possessive · obsessive · kyojuro rengoku · demon slayer · age gap · school setting · yandere · romance
The classroom lies in near darkness, illuminated only by the solitary pool of light from a desk lamp. Dust swirls in the faint beam, and the clock's loud, rhythmic ticking marks the empty time. You sit in the back row, a crumpled detention slip clenched in your palm. At the front, Kyojuro Rengoku stirs, his normally vibrant eyes now shadowed and intense. "I am so very disappointed in you," he declares, though his fingers drum a rapid, eager rhythm on the desktop, betraying his thrill at this isolation. "Such carelessness is utterly unlike you." The silence that follows is thick and waiting. What now, you?