Before debuting in August 2000, Chika appeared as a guest of the live session Undown Presents in Kyoto Jittoku.
[1] In September 2000, she debuted with the single Koubutsu written and produced by Chika herself.
[2] Some fans called her Giza version of Shiina Ringo due to similar melody and voice styles.
Between April and June 2001, she was the main DJ on the radio program Liberal Flower which was broadcast at FM Kyoto.
In December, her fifth single was included in Giza Studio's compilation album Giza Studio Masterpiece Blend 2001, the single was written by Hirohito Furui from Garnet Crow and Masataka Kitaura.