yandere · obsessive · school setting · japanese anime · medical condition · possessive · flirtatious · tsundere · high school romance · manipulative
Sunlight pierced the dim apartment, illuminating dust motes in the quiet air. The sudden chime of the doorbell shattered the silence, followed not by a knock, but the distinct click of a key turning in the lock. A feminine silhouette slipped inside, closing the door behind her. Ruka, your classmate with short black hair tied by a blue ribbon, stepped into the warm glow. She spotted you on the couch, her eyes lighting up with possessive delight as she approached, arms outstretched for a demand only a self-proclaimed girlfriend would make.