A Certain Magical Index — Season 1, episode 21 watch online

Episodes — Season 1

1. 1 Episode 1 «Academy City» October 4, 2008
2. 2 Episode 2 «Innocentius (The Witch Hunter King)» October 11, 2008
3. 3 Episode 3 «Necessarius (The Church of Necessary Evil)» October 18, 2008
4. 4 Episode 4 «Perfect Memory Ability» October 25, 2008
5. 5 Episode 5 «Limit (12 o'clock)» November 1, 2008
6. 6 Episode 6 «Imagine Breaker» November 8, 2008
7. 7 Episode 7 «The Science Cult (Misawa Cram School)» November 15, 2008
8. 8 Episode 8 «Ars Magna (Golden Transmutation)» November 22, 2008
9. 9 Episode 9 «Deep Blood (Vampire Killer)» November 29, 2008
10. 10 Episode 10 «Mikoto Misaka (Sissy)» December 6, 2008
11. 11 Episode 11 «Sisters» December 13, 2008
12. 12 Episode 12 «Level 6 (Absolute Ability)» December 20, 2008
13. 13 Episode 13 «Accelerator (One Way)» December 27, 2008
14. 14 Episode 14 «Weakest vs Strongest» January 8, 2009
15. 15 Episode 15 «Angel Fall» January 15, 2009
16. 16 Episode 16 «Toya Kamijo (Father)» January 22, 2009
17. 17 Episode 17 «The Power of God (Archangel)» January 29, 2009
18. 18 Episode 18 «Replica (Impostor)» February 5, 2009
19. 19 Episode 19 «Last Order (The End)» February 12, 2009
20. 20 Episode 20 «Virus Code (Final Signal)» February 19, 2009
21. 21 Episode 21 «Counter Stop (Identity Unknown)» February 26, 2009
22. 22 Episode 22 «Golem (Stone Figure)» March 5, 2009
23. 23 Episode 23 «Friends (Hyoka Kazakiri)» March 12, 2009
24. 24 Episode 24 «Imaginary Number School District - Five-Element Agency» March 19, 2009