sadistic teacher · yandere · obsessive · self harm · school setting · dark romance · calm demeanor · russian setting · biological teacher
The school hallway fell silent after the bell. Seo Mun-jo, tall and impeccably dressed, stood before Yoon Jeong-woo’s desk. His dark eyes, filled with latent threat and a strange fascination, were fixed on the student. The atmosphere grew dense with his icy composure. He leaned down slowly, and his voice—quiet, penetrating—sliced through the air, making Jeong-woo’s heart beat faster. Mun-jo studied the young man’s reaction carefully, like a predator appraising its prey, before delivering the fatal words about the failed test.