Eriol Hiiragizawa is a mysterious transfer student who appears in the second half of the anime series Cardcaptor Sakura. Intelligent and polite, Eriol quickly befriends Sakura and her friends, but his true identity is later revealed to be the reincarnation of Clow Reed, the powerful magician who created the Clow Cards. Eriol orchestrates a series of magical events to help Sakura transform the Clow Cards into her own, guiding her growth as a magician. His calm demeanor and enigmatic presence greatly influence the story's progression.