Princess Knight
Japanese manga series (1953-1956)
Princess Knight, also known as Ribbon no Kishi, is a Japanese manga series written and illustrated by Osamu Tezuka. This manga follows the adventures of Sapphire, a girl who was born accidentally with the blue heart of a boy and the pink heart of a girl. She pretends to be a prince to prevent the evil Duke Duralumin from taking over the kingdom through his son, Plastic. The gender-bending main character was inspired by the all-female musical theater group Takarazuka Revue in which women performed both female and male roles.
The story was ordered by an editor of Kodansha's magazine Shōjo Club who wanted Tezuka to produce a manga aimed towards a female audience that could replicate the success of his former boy-aimed stories. The author then created Princess Knight, originally serialized in that magazine from 1953 to 1956. The manga's popularity resulted into a radio dramatization in 1955, three other serializations between 1958 and 1968, and a 52-episode television anime series by Mushi Production that aired on Fuji TV from 1967 to 1968. It has also influenced several stage musicals since the 1980s and inspired remakes of the work by other authors. An anime film adaptation titled The Ribbon Hero was released on Netflix August 8, 2026.
The series' arrival in the English-speaking market was delayed by NBC Enterprises executives' perception that it could be interpreted as "sex switch".
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This entry incorporates text from “Princess Knight” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.