Kero is a small, winged creature from the popular Japanese anime and manga series, Cardcaptor Sakura. Known as the "Guardian Beast of the Clow," Kero takes on a cute, plush-like appearance and often provides guidance to the main character, Sakura Kinomoto, as she captures magical cards. Kero has the ability to transform into a larger, more powerful form when necessary. In addition to being a guide, Kero is also known for his playful and sometimes mischievous personality. He enjoys eating sweets and often acts as comic relief in the series. Kero's character adds charm and humor to the story while supporting Sakura in her adventures.