"Magical Girl Illya Season 3" is mainly about Illya, an ordinary girl who attends Hogunhara Academy. One day, she meets the magic Ruby Kaleidoscope Wand, who claims to be an artificial natural elf, and is forced to sign a contract with her, becoming the magical girl Illya. At this time, she is the owner of the Ruby Star, and she also becomes the slave of the magician Rin Toosaka, the original owner of the Kaleidoscope Wand. Under her orders, she is forced to help recycle the class cards.