The film tells a story of a girl named Mary Smith who finds ''fly-by-night'', a mysterious flower that can give her the power to become a witch for only one night. The film was released in Japan on 8 July 2017. In the English-language version of the film, which was concurrently released with a subtitled version in the United States on 19 January 2018, the film features the voices of Ruby Barnhill, Kate Winslet and Jim Broadbent.

Can we conclude that is mary a witch in mary and the witchs flower?
yes