To inherit the throne in a kingdom that forbids women from ruling, Sapphire must disguise herself as a male prince .

This work inspired legendary series like Sailor Moon and Revolutionary Girl Utena .

Created by , the "Godfather of Manga," this series is a foundational work in the shojo genre .

2. The Children's Classic: The Princess Knight by Cornelia Funke

Princess Sapphire is born with both a "boy's heart" and a "girl's heart" due to the mischief of an angel named Tink.

As the "Princess Knight," she wields a sword to fight injustice and thwart the evil Duke Duralumin.

Author of Inkheart , offers a different take on the theme for younger readers. The Princess Knight - Books - Amazon.com