PSYREN

High school student Ageha Yoshina stumbles upon a strange red phone card one day. Not long after, his childhood friend Sakurako Amamiya—who held an identical card—disappears without a trace. Determined to find her, Ageha gets pulled into whispers of widespread vanishings linked to a covert group called Psyren. Once he makes contact with them, he's thrust into a lethal game that will alter his destiny forever.