Mao Daichi was born on February 5, 1956 in Sumoto, Hyogo, Japan as Mayumi Tada. She is known for her work on Doomsday: The Sinking of Japan (2006), Kôdaike no hitobito (2016) and Yûsha Yoshihiko (2016). She has been married to Yasumichi Morita since 2007. She was previously married to Ken Matsudaira.