|Age||13 (in Omake 3)
|Relatives||Eddie Olston (husband)
Carol Olston (daughter)
Ferris has short blonde hair like her daughter Carol and bright blue eyes.
Ferris is as bubble-headed and airy as her daughter. She even got lost from the front gate of her house trying to get back to the house.
She worked at her mother's café in Britain as a waitress and met Eddie when she was only thirteen.
When they first met Eddie didn't know her age because of her mature-looking body, he later found out when he asked her to marry him.
Carol is Ferris's daughter, they are very close and it's noted by Misuzu that she dotes on her daughter. She is always seen hugging her.