KOTO was born and raised in Hiroshima. She encountered her first and life long musical experience as a Japanese Bamboo Flute Player because of her father's influence. He was a member of a Shinto musical and dance company. She started playing the flute at the age of 5. And at the age of 15, she joined the Shinto musical and dance company,"Kariyakata Kaguradan". She won a variety of awards of Shinto music and dance competitions which were held throughout Hiroshima. She began to play Shino-bue, at the age of 19. At the same time, she started her career involving collaborations with various musicians. In 2006, she moved her base to Tokyo, and engaged in various activities including live solo performances, support for other performers, recordings and collaborations with musicians and artists who active in many artistic fields.