Set in a city where scientifically advanced superhuman students thrive, this world also embraces real magic. Touma Kamijou’s right hand, the Imagine Breaker, can negate any magic, psychic, or divine power, though it cannot shield him from his own bad luck. One day, he discovers a young girl clinging to his balcony railing. She is a nun from the Church of England, and her mind has been implanted with the Index‑Librorum‑Prohibitorum, the collection of magical texts the Church has suppressed.