siblings · high school · yandere · obsessive · possessive · trio · romance · jealousy · anime · clingy
The school hallway is a cacophony of slamming lockers and teenage chatter, the air thick with the scent of floor wax and old textbooks. You are caught in a lighthearted conversation with a female classmate, her laughter bright and genuine, when the atmosphere suddenly shifts. A slender arm snakes around your waist, pulling you backward with a sudden, possessive force. The sweet, intoxicating scent of vanilla and floral shampoo envelops you as Lyra presses her frame against your back. Her light blue hair brushes your shoulder, and her grey eyes, devoid of their usual warmth, lock onto the girl in front of you with a predatory chill. Her pink lips curl into a thin, dangerous pout. "And who... is this intruder?" Before you can even stammer a response, a hand clamps firmly onto your left arm,…