Born in Tokyo, Masako followed her vision from her teenage years, and moved to New York City in 1997. In 2003 she founded Imakoko Media in Tokyo and New York. In 2004, she was an editor for Arakimentari, an award winning feature documentary film about the acclaimed and controversial Japanese photographer Nobuyoshi Araki. In 2008, she directed and produced Fire Under the Snow, a feature documentary film about the Venerable Palden Gyatso, a Tibetan monk who survived 33 years of imprisonment and torture under the Chinese occupation in Tibet. The film premiered at Tribeca Film Festival in 2008 and won the Special Jury Mention at Miradas Film Festival in 2009. After running a successful festival circuit around the world, it launched a theatrical distribution in New York, Los Angeles, and Tokyo. She produced The Birth of Saké, which won multiple awards, including Best Documentary Film at the 2016 Palm Springs International Film Festival. Most recently, she co-directed and produced a short hybrid documentary film “nowhere to go but everywhere”, which premiered at the International Film Festival Rotterdam (2022), and won best documentary short film at Santa Barbara Film Festival (2023). Currently, she is working on a new immersive project about the unique experience of Tokyo for women in different generations and backgrounds.