OVER

OVER is a song by and  that can be found in the Toaru Majutsu no Index Movie: Miracle of Endymion Original Soundtrack. Lyrics were written by Mutsumi Sumiyo and the music was composed Iuchi Maiko. The song was sung by Meigo Arisa and Shutaura Sequenzia for their duet that caused the Miracle of Endymion. It is the longest insert song used for the movie, second only to Ashita, Hareru Kana, and the only song that had all its lyrics sung.

OVER (ARISA ver.)
The Arisa version can be found only in the polaris mini-album. It is longer and features more lyrics than the movie version, the lyrics of which was mostly taken from the later half of the song. Unlike the movie version it is more pop-sounding and lacks the orchestral accompaniment that is prominent in the movie version.