Keroberos

Keroberos, often called Kero or Cerberus, is a character from the "Cardcaptor Sakura" series. He is a small, fluffy, golden creature with wings and three horns on his head, acting as the guardian of the Clow Cards. As a supportive companion, Keroberos helps the protagonist, Sakura, by providing guidance, protection, and sometimes comic relief. His gentle yet brave personality makes him a loyal ally in the quest to capture and control the magical cards. Overall, Keroberos symbolizes loyalty and guardianship within the story's magical world.