She moved frequently between Osaka and Hawaii between the ages of 3 and 8, after which she also stayed for an extended period of time in Los Angeles.

Tanimura was enrolled in the College of Law at Aoyama Gakuin University and graduated in March 2010.

In her third year of high school, Tanimura caught the attention of music production agents at an event in Osaka.

In 2007, her first singles, "Again" and "Say Good-Bye" were released under Avex Group's Sonic Groove label.

In 2010, she was chosen to sing the official theme songs of the game Hokuto Musō.