UNCHAIN was formed in Kyoto in 1996. Later, they moved into Osaka and began playing live gigs there. They progressed musically and put out demo songs on compilation CDs and started to work on their mini album, with their guitarist now not just a support member. He joined the band for the production of the mini album "The Space of the Sense" which was released on June 8, 2005. They have released several mini-albums and three full-length albums since then.
Taking influence from Blues, Jazz, and of course rock music, they have a lot of originality. With a high pitched back up singer and a milder one for a frontman it really helps the band with vocals, as does the great work they do on the songs instrumentals.
The band's third full-length album, "Hello Young Souls!!" was released in July 2010.