They debuted with a free concert at Urawa Narciss on February 1st 2005. In January 2006 they had their first tour "the parade of an Ant" and few months later they officially started releasing albums and singles through their own record label Graveyard Records (4).
Bassist 殊 left Sugar after the concert "Blossom for you." on December 29th 2007. The identity of new bassist 真悟 was revealed on the official website on January 1st 2008. On November 2008 Sugar had their first oneman tour "add". Sugar disbanded after a final oneman on January 4th 2009 citing musical differences.