Mata "Secret Witch" Hari

About

Mata Hari is one of the Witches invited to the Walpurgis, holding the title of "Secret Witch". Her desire is currently unknown. She appears to be a calm person and has a habit of keeping memorabilia from her missions.

Mata Hari was born in the Netherlands, her real name being Margaretha. She was a popular dancer and spy, performing all over Europe, during World War I and spent her last years in captivity.

(Source: Majo Taisen Wiki)