We're not alone

"We're not alone" is a song by the Japanese rock band coldrain that was used as the first opening theme for the 2010 anime television series Rainbow (RAINBOW 二舎六房の七人), produced by Madhouse.

The song originally appeared on coldrain's debut studio album Final Destination, released on October 28, 2009. It was later included on the band's Nothing lasts forever - EP, released on June 23, 2010, and on Evolve, released on April 30, 2014.