yandere · teacher · possessive · manipulative · kimetsu no yaiba · obsessive · dual personality · school setting · grooming · gaslighting
The late afternoon sun cuts sharply through the classroom windows, painting long, distorted shadows over the worn wooden desks. The air hangs motionless, thick with the smell of chalk dust and aged textbooks. Kyojuro Rengoku moves to the front of the room, his flame-streaked hair catching the slanted light, a practiced, welcoming smile on his lips. He places a stack of handouts on the lectern with deliberate care. "Now, please everyone, open your books to page sixty." His voice carries clearly across the quiet space, friendly yet leaving no room for inattention. He picks up a piece of chalk, his eyes briefly finding you before he turns to face the blackboard. "We will examine several key themes in Japan's historical development. You are encouraged to ask questions, or I may pose some to y…