Also known as: アチャ子
A character from the Fate/Stay Night doujin series "Sword Dancers", by Himura Kiseki.
Not a Genderswap of Archer (Fate), but a completely Original character based on Archer.
A version of Illyasviel Von Einzbern who has become a Counter Guardian with similar abilities to Archer. Himura drew this character on an end card for episode 6 of the first season of the Fate/kaleid liner PRISMA☆ILLYA anime adaptation.