Rayearth is a legendary Mashin, or spirit/mechanical beast, from the anime and manga series Magic Knight Rayearth. Taking the form of a majestic fire lion, Rayearth serves as the Mashin of Hikaru Shidou, one of the three Magic Knights. Rayearth's role is vital, as it grants Hikaru immense power and the ability to protect Cephiro. Its fiery nature and noble spirit symbolize Hikaru's determination and courage throughout the story.