Princess Knight
リボンの騎士 (original)
Princess Sapphire is a princess who was born with a boy's mind and raised as one because of one mischievous angel's mistake. Nevertheless, there is no way a girl can take the throne so her parents and the maid that helped raised her kept it a secret from everyone. Now as a Knight of Ribbon she has to fight to avoid having her identity revealed that Sapphire is a girl. She'll need the help of an angel who is in fact a make-believe angel.
Starring Yoshiko Ohta, Noriko Shindô, Gorō Naya, Kyoji Kobayashi, Ryusuke Shiomi, Chie Kitagawa
It's a animation and action & adventure show, and has a rating of 7.3 out of 10 from Imdb which is usually fine for this kind of show.
Watch it here
Not found streaming from United Kingdom.