Chloe von Einzbern (クロエ・フォン・アインツベルン, Kuroe fon Aintsuberun?), also known as Kuro (クロ?, lit. “Black”), is a twin existence formed from Illya’s original self in Fate/kaleid liner PRISMA☆ILLYA. She also appears as Archer (アーチャー, Āchā?), an Archer-class Servant summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order.

Illya was born to act as the key of the Holy Grail War system of Fuyuki, but it was never actualized in the Fate/kaleid liner world. Her parents, Kiritsugu Emiya and Irisviel von Einzbern, decided to abandon the ritual by Irisviel’s choice, but Illya still had the knowledge granted to her to act out her purpose. She had been continually tuned during her first few months of life, given the ability to understand words and different types of knowledge. Irisviel believed that an eight month old existence outweighed the thousand year dream of the Einzberns, so she sealed Illya’s faculties, knowledge, and memories in order to allow her to live as a normal girl.

Irisviel miscalculated the process, so the sealed memories grew up inside Illya and eventually became a second personality. Due to Illya’s ability to “grant wishes” as the vessel of the Grail leaking from the seal, this personality became powerful enough to harness the Archer Class Card and create a body for itself, becoming Kuro. She refers to herself as Illyasviel von Einzbern even after being separated, but has her name changed to avoid confusion.

Chloe is a young girl with tanned skin color and white-rose like hair. Chloe von Einzbern Archer form her clothing consists of a feminine version of EMIYA’s servant clothing. While at school she wear the typical school uniform. Generally speaking she looks like a palette swapped version of Illya.

Despite having an overall similar appearance with Illya (except her eye and hair colors), Chloe often styles her hair differently from her.