Chokai originally formed in Luton, UK in 1997. The original lineup consisted of two brothers, Chris Curry and Simon Curry. Chris left Chokai in 2004 and reformed in 2005 as a solo artist. Originally signing to 3bass records in 2003, and then signing to Artificial Bliss Recordings Ltd. in 2005, Chokai have released 3 official albums. Tori Umi was the first official release on 3Bass records in 2003, Iko was the first release with Artificial Bliss Recordings in 2005, and the third in 2008, with a notably different, more experimental sound titled Knowledge and Ignorance.