Hikaru Shidou is a fictional character from the anime and manga series Magic Knight Rayearth, created by CLAMP. She is one of the three main protagonists, known for her energetic and determined personality. Hikaru is chosen to become a Magic Knight and is tasked with saving Princess Emeraude in a magical world called Cephiro. In the series, Hikaru wields a sword and possesses the power of fire, which she uses in battles against various foes. Alongside her friends Umi and Fuu, she learns about friendship, bravery, and the responsibilities that come with her powers. Hikaru's character development is central to the story's themes of courage and self-discovery.