Osamu Tezuka's beloved heroine Sapphire, known across the globe as the Princess Knight, returns in a two-volume release by famed manga publisher Vertical. Heavily inspired by Disney in its design and tone and considered by many as the first major shojo (girls) works, it has long been one of Tezuka's most acclaimed works. In a medieval setting, Sapphire must pretend to be a male prince so she can inherit the throne. Women have long been prevented from ascending to this position but, undiscouraged, Sapphire fully accepts her role, becoming a dashing heroine.