She is an excellent tennis player from London, England. When she was younger she lived in Japan. She placed first in Wimbledon for five consecutive years. She was ranked Number 1 and earned the name 'Grass Court Queen'.

Her father was German and her mother was English. Her father and little sister died in a traffic accident eight years prior to the current storyline. She has a younger brother named Apollo. She was coached by Ares Ashley, who was coached by her father. Ares quit coaching Minerva (although he liked her) because he blamed himself for her father's death, since he had died in the traffic accident while on his way to watch Ares' match. This saddened Minerva greatly.

(Source: detectiveconanworld.com)