Yousei no Butsurigaku: PHysics PHenomenon PHantom

In 2032, a new physics theory emerged that changed reality, leading to the appearance of girl-like entities called Fairy. These beings caused both great benefits and disasters for humanity. Seven years ago, a catastrophic event known as Fairy Hazard destroyed Kobe, though the city was later restored. A boy named Kanae lived there, assuming a quiet life, until he encountered a girl pleading for help, confessing to killing fifteen million people at once. This revelation exposes a hidden truth and a grave wrongdoing, prompting Kanae and the girl to go on the run.