A Transient from the world of Olympus. She attends a school in Taito Ward specialized for fashion designers, and she has a very strong artistic spirit. She is magnificently molded from the shadows of the world and is famed as an expert in fabrics, but due to a certain incident she has been turned into a spider. Arachne is always seeking new inspiration for her designs, and she belongs to a guild of expressionists known as the Akihabara Creators. Her reason for living can be felt through her constant improvements for her personal best and her continuing efforts to make her greatest masterpiece. As she is very self-assured, there are many times when she has been seen as haughty. She wants to dress up those with little interest in fashion, though she's under the dilemma over how difficult it is to bring out their charm.