She participated in voice actor auditions of Di Gi Charat on May 2, 1999, and she won the Special Jury Prize. She voiced Puchiko in the English dubbed release of Leave it to Piyoko, making her the first and one of the few Japanese voice actors to have reprised a role in English in addition to the original Japanese performance. She was not able to record for the English dub of the Di Gi Charat TV series because of a scheduling conflict. She was affiliated with Mausu Promotion since the start of her voice acting career until August 2015 when she became affiliated with Aoni Production.
During her time in high school, she stayed in Pennsylvania, where she participated in a homestay program to learn English. She takes time off to practice English when she's not busy with voiceover work. She has a younger brother named Chiharu Sawashiro who is also a voice actor. The Actress announced her marriage in 2014.
