|This article is about a/an actor in Kamen Rider 555.|
On June 6, 2006, she married Yuusuke Tomoi who played Ryou Ashihara/Kamen Rider Gills in Kamen Rider Agito. In August that same year, Mika gave birth to a girl. The couple separated in June 2008 and announced their divorce in August 2008. Katsumura gained custody of their daughter.