Academy City stands as humanity's greatest technological achievement, where espers develop superhuman abilities through scientific means. When a massive space elevator called Endymion begins construction, it promises to revolutionize the world. But its completion triggers a catastrophic chain of events that threatens to destroy everything the city has built. Touma finds himself caught between warring factions: scientists desperate to preserve their research, espers whose powers surge unpredictably, and magicians who see an opportunity to strike at Academy City's heart. The space elevator itself becomes ground zero for a conflict that could reshape the balance between science and magic forever. What drives the conspiracy behind Endymion's construction, and who really benefits from the chaos? As Touma races to stop a disaster that nobody else sees coming, he discovers that some of Academy City's greatest secrets were hidden in plain sight all along. The battle to save the city unfolds across locations both terrestrial and beyond, mixing large-scale destruction with personal stakes that cut to the core of what Touma stands for.