AGE: 17 (TV series), 19 (Gaiden),20 (Kikoutei and Message)
HEIGHT: 5' 6"
WEIGHT: Unknown
BIRTHDATE: May 28 1970
BIRTHPLACE: Unknown
ASTROLOGICAL SIGN: Gemini
BLOOD TYPE: AB
FAVORITE SPORT: Unknown. She does enjoy bicycling and the Ronin Warriors have been training her with the naginata.
INTERESTS: Romance literature, driving.
DISLIKES: Secret
FAMILY:
Father: Japanese.
Mother: French.
Grandfather: a romance literature professor at Sengoku University. Deceased.
Mia has held a driving license since 17. She probably only came over to Japan recently and is probably holding a temporary license. The large house shown in the series and OAVs is located in Odawara, a town in Kanagawa Prefecture and south of Tokyo. The dock and the other house are located on the shores of Yamanaka lake which must be very close to the house. With the data her grandfather's collected, Mia serves as the support for the Ronin warriors. All of them (maybe not Sage) see her as an older sister. It is hinted that Sage and Mia may become something more than friends (though this fact is lost in the English Translation of the show). The Koji family is very wealthy, hinted by the large house within driving distance of Tokyo. Mia states it as a fact in Kikoutei Densetsu volume 3.