A Certain Magical Index — Arcs d'histoire et guide de remplissage
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Season 1
Eps 1–24 · 24 epsHow does A Certain Magical Index begin?
Episodes 1-24 (2008-2009) introduce Touma Kamijou, an Academy City student whose right hand, the Imagine Breaker, negates any supernatural power on contact. He rescues Index, a nun on the run carrying 103,000 forbidden magic texts memorized in her head, and gets pulled into escalating conflicts between the city's esper science and the shadowy world of magic.
Season 2
Eps 25–48 · 24 epsWhat does Season 2 cover?
Episodes 25-48 (2010-2011) expand the conflict between science and magic factions further, introducing new magician antagonists and deepening Touma's entanglement with Academy City's darker secrets while continuing to protect Index from those who want her power for themselves.
Season 3
Eps 49–74 · 26 epsWhat happens in A Certain Magical Index Season 3?
Episodes 49-74 (2018-2019) escalate the stakes dramatically, adapting later, higher-stakes light novel arcs and bringing several long-running plot threads from the science-magic conflict to a head.