Illya, an ordinary girl who attends Hogunhara Academy, meets the magic Ruby Kaleidoscope Staff, who claims to be an artificial natural spirit, one day, and is forced to sign a contract with it, becoming the magical girl Illya. At this time, she is the owner of the Ruby Star, and becomes a slave of the magician Rin Tosaka, the original owner of the Kaleidoscope Staff. Under her orders, she is forced to help recover the class cards. One day, she meets the Kaleidoscope Staff that escaped from Rin's hands, and is forced to become a magical girl, becoming the owner of the magic ruby. Rin, the original owner of the magic ruby, forces her to help recover the cards. With the power of the magic ruby, she transforms into the magical girl Prisma Illya. She likes to watch magical girl anime DVDs, so her wish is to become a magical girl. She attends the elementary school of Hogunhara Academy, and her hobby is watching anime. She always runs the 50-meter sprint as well as boys, but loses to Miyu. Because the ritual to normalize the leyline went wrong, she separated from Illya and materialized her personality. Her skin is darker than Illya's, and her hair is silver. Her clothes are similar to Archer's, but more revealing. She is more cunning than Illya, but no one can recognize her as Illya except Rin, Luvia, Miyu and Illya's mother. In order to distinguish her from Illya, she was named "Kuro" by Rin, and Chloe von Einzbern made up a name for herself. She originally attacked Illya by any means necessary to wipe her out, but was captured alive by Rin and Luvia, and was cursed with a blood seal that shared pain, so her plan was ruined. She then transferred to Illya's class. A magician of the London Clock Tower, the original owner of the magic ruby, she came to Fuyuki City with Luvia to recycle cards according to the order of the master. She is good at jewel magic and is the chief candidate for the Clock Tower in this issue. She just went abroad. She was abandoned by Luvia because of a dispute with Luvia over using the power of a magical girl. Rin's personality in this work is more active; her clothes are also more varied and girlish. At the beginning of the second part, because the gems were used up but there was no money to replenish them, she worked as a maid in Luvia's house and had a crush on Shirou. A magician who worked with Rin to collect cards. The original owner of Magic Saphia, abandoned by Magic Sapphire because of a dispute with Rin in the sky above Fuyuki City. Finn, the head of the magic family Edelfeldt, although very rich, he himself hated unnecessary spending; he was as good at gem magic as Rin Toosaka, and once said: "The difference in the depth of the purse represents the decisive gap in combat power!" When studying abroad in the Clock Tower, he met Rin Toosaka, who had similar abilities. Because of their incompatibility in personality, the two of them became enemies, and even reached the point where water and fire could not tolerate each other, and there was no room for two tigers in one mountain. Every time they met, they would definitely end up fighting. He had a crush on Shirou and always fantasized about the future of marrying Shirou. A magic wand that calls itself love and justice. It is called a happy magic outfit. Although it is an artificial natural elf, it has a bad personality. A first-class magic outfit for the application of the second magic. Ability to use multiple transformations, allowing the user to download skills from parallel worlds. While transforming, the user can use A-level magic barriers, physical protection, accelerated healing, physical ability enhancement and other standing abilities.