Tsuji began writing lyrics in elementary school, and at 15 started playing the guitar.
At this time, she starting composing music to set to the lyrics she had written at nine years of age.
In order to pursue a career in music, she dropped out of high school in her first year.
Half a year after this, she started performing at many different live houses, and at 17 recorded her first demo CD.
[citation needed] In November 2008, she debuted under DefStar Records with the single "Candy Kicks".