No buts!

No buts! is the first opening theme for the second season of Toaru Majutsu no Index. It was introduced in the first episode of the anime.

Tracklist
Mami Kawada composed the lyrics and provided lead vocals; music composition was done by Tomoyuki Nakazawa, as well as arrangement along with Takeshi Ozaki. The proper single release of the song was on November 3, 2010.

The single release features the full version of the opening theme.
 * 1) "No buts!" – 3:37
 * 2) "SATANIC" – 4:53
 * 3) "No buts!" -instrumental- – 3:37
 * 4) "SATANIC" -instrumental- – 4:50

Characters
By appearance
 * Kamijou Touma
 * Index
 * Misaka Mikoto
 * Accelerator
 * Shirai Kuroko
 * Uiharu Kazari
 * Misaka clones
 * Last Order
 * Tsukuyomi Komoe
 * Aogami Pierce
 * Fukiyose Seiri
 * Himegami Aisa
 * Tsuchimikado Maika
 * Heaven Canceler
 * Misaka Misuzu
 * Stiyl Magnus
 * Kanzaki Kaori
 * Tsuchimikado Motoharu
 * Musujime Awaki
 * Tatemiya Saiji
 * Itsuwa
 * Uragami
 * Amakusa-Style Remix of Church
 * Agnese Sanctis
 * Lucia
 * Angelene
 * Orsola Aquinas
 * Lidvia Lorenzetti
 * Oriana Thomson
 * Laura Stuart
 * Aleister Crowley

Spoilers

 * Touma battling Oriana Thomson

Trivia

 * The Misawa Cram School building can be seen near the end of the opening theme.
 * Saten Ruiko does not appear in the opening theme, unlike the previous ones.