Pretty Cure
ふたりはプリキュア (original)
Nagisa Misumi is an outstanding athlete and daring girl that doesn't take time to study but has a very strong sense of justice. Honoka Yukishiro is an honor-roll student always boasting the best grades in her class. The two are 8th graders at the Verone Junior High School for girls. Nagisa and Honoka each encounter Mepple and Mipple – two mysterious creatures who came down from the sky one night. These two strange creatures grant Nagisa and Honoka the power to transform into superheroes called "Cure Black" and Cure White", and thus the two girls become guardians of planet Earth.
Starring Kenichi Ono
Watch "Pretty Cure" from streaming services Tubi TV, Amazon released in 2004. It's a animation and action & adventure show, and has a rating of 6.7 out of 10 from Imdb which is usually fine for this kind of show, and is currently available to watch for free.