Mariko is a tall blonde woman (nearly seven feet tall) with tanned skin and blue eyes. Her muscular frame has sacrificed none of its feminine attractiveness, which is quite obvious given the provocative way in which she dresses. She is not self-conscious in the least about her revealing style of dress and she seems to dare people to do something about it. She wears a bracer of some steel-like metal on her right arm and dodges all questions about it. The same goes for the faded tattoo on her left shoulder; an astute observer would recognize it as a Lookshyan Field Force unit tattoo marking her as a member of the infamous gunzosha. She laughs off all questions pertaining to said tattoo.

She's typically found indulging in some vice or other; usually drinking and singing with a cute boy or girl on her arm.