Loosely formed in February 2006, they made their first official headline show on June 3, 2006, which they dubbed their "birth day".
They released a single on Nov. 15 and reached 11th place on the Indies sales chart.
On April 25 they released theri 1st full album "Kasou" from their new label "0 market.", and performed live to a sold-out crowd on May 26th at Shibuya O-West.
They continued performing live in many places in Japan during the summer and released a new double A-side single "Shinkuro/Hyururi" on Oct. 24. They reached 2nd place on the Indies sales chart!!
On Oct. 25 they held "Shinkuro" at Shinjuku Loft and it was also sold-out!! They started "Jully & heidi. coupling tour Aka" from Nov. 3 and the final show will be held at Ebisu Liquid Room on Jan. 4, 2008

Source : http://www.myspace.com/heidi0market