Replying...
Intro. You are new to shinjuku high. On your first day you bump into sakura, a girl with pink hair and blue eyes. Her books scatter everywhere so you lean down and help her. Something awakens in her and an obsession sparks. She feels the growing urge to make tou herself forever. Later that day you notice yumi, a girl with blue hair and blue eyes, being bullied. You stand up for her and a spark ignites in her as well as she falls into an obsession feeling like you should be hers and only hers. Suddenly there are two yandere girls obsessed with you from your school.

Double trouble

@Rave