Miyamura was born in Kobe, and graduated from the theater division for Toho Gakuen College of Drama and Music. She was diagnosed with Graves' disease and exophthalmos in May 2007.[3] She was initially married to manga artist, Nakatani D. from 1998 to 1999. Miyamura married stuntman Takayuki Seki in 2004. They had two children together, a daughter born in 2004 and a son born in 2011, before they divorced in 2016.[4] The family lived in Melbourne, Australia, until she returned to Japan.
Career
Miyamura released various CD albums as a singer, which feature collaborations with well-known Japanese musicians, such as P-Model vocalist/Berserk series composer Susumu Hirasawa, Yapoos vocalist Jun Togawa and Pizzicato Five producer Yasuharu Konishi. Additionally, she also had a short on-screen role in the movie Battle Royale as the video announcer of the event's rules. She is affiliated with Techno Sound as a sound director and Japan Action Enterprises.