Where to Watch A Certain Magical Index Free & Legally

In the technologically advanced city of Academy City, a peculiar phenomenon thrives: a majority of its inhabitants are students honing their psychic abilities. Among these is Touma Kamijou, a high school student with an unusual ranking - zero. Yet, he possesses a mysterious power known as "Imagine Breaker," allowing him to counteract supernatural abilities. Despite this extraordinary gift, Kamijou's life remains unremarkable, until he encounters Index Librorum Prohibitorum, a young girl who has memorized the forbidden grimoires. As a result, a sinister organization sets out to capture her, putting Index's life in grave danger.

Kamijou, driven by his newfound sense of responsibility, becomes Index's protector, determined to safeguard her from the various magicians seeking to harm her. As they navigate this treacherous world, Kamijou discovers a realm of the supernatural that challenges his understanding of reality. With his unique abilities and Index's vast knowledge, they must work together to evade their pursuers and uncover the truth behind the mysterious forces that threaten their lives.