Hideko Mizuno

Hideko Mizuno is one of the first successful female Japanese shōjo manga artists. She was an assistant of Osamu Tezuka staying in Tokiwa-sō. She made her professional debut in 1955 with Akakke Kōma Pony, a Western story with a tomboy heroine. She became a prominent shōjo artist in the 1960s and 1970s, starting with White Troika, which serialized in Margaret in 1963.