Chikaigoto ~Sukoshi Dake Mou Ichido~

Chikaigoto ~Sukoshi Dake Mou Ichido~ (誓い言 ～スコシだけもう一度～) is the second ending theme for the first season of Toaru Majutsu no Index. It was introduced in the Episode 20 of the anime and was used until the end of the season.

Tracklist
Like the first ending theme it is sung by IKU who also composed the music and lyrics; Kazuya Takase provided the arrangement.

The single features the full version of the song.
 * 1) "Chikaigoto ~Sukoshi Dake Mou Ichido~" (誓い言 ～スコシだけもう一度～) – 4:27
 * 2) "Yurari Haru" (ユラリハル) – 5:14
 * 3) "Chikaigoto ~Sukoshi Dake Mou Ichido~" -instrumental- (誓い言 ～スコシだけもう一度～) – 4:27
 * 4) "Yurari Haru" -instrumental- (ユラリハル) – 5:11

Characters
By appearance
 * Misaka Mikoto
 * Shirai Kuroko
 * Stiyl Magnus
 * Kanzaki Kaori
 * Aogami Pierce
 * Tsuchimikado Motoharu
 * Himegami Aisa
 * Heaven Canceler
 * Accelerator
 * Index
 * Unabara Mitsuki
 * Yoshikawa Kikyou
 * Sasha Kreutzev
 * Last Order
 * Sherry Cromwell
 * Tsukuyomi Komoe
 * Yomikawa Aiho
 * Kazakiri Hyouka
 * Kamijou Touma

Lyrics
Chikaigoto ~Sukoshi Dake Mou Ichido~