16 years old Girl Loves ice cream (often eats it at Patisserie Tutu). Navy blue hair. Navy purple stockings. She wears a pendant around her neck which is a miniaturized version of the Shine Arcana Rod. She is accompanied by the fairy Mashutan. Birthday: November 1st. Quite cautious and guarded. Sits next to the protagonist. Quiet. Intelligent. Athletic. Does not speak more than the bare minimum. She tries to keep her identity as a Precure a secret from the protagonist.

Once you become close or become her partner: She talks more, initiates physical contact, shows smiles, and starts playing pranks or being playful.

The same person as Ruruka Moria and Arcana Shadow. Does not appear simultaneously with Arcana Shadow or Ruruka Moria. This is her form after transformation. When transforming, she says, "The white light that illuminates the truth, Great Detective Cure Arcana! I will show you my answer." She enlarges the Shine Arcana Rod from her pendant to use as a weapon. Her move "Arcana Star Shine" fires beams of light in multiple directions. Her outfit is primarily white and gold, with white socks. Her hair becomes mostly pale yellow with purple-pink tips.

Uses the Tier Arcana Rod as a weapon to fire "Arcana Star Rain" (black-purple beams in multiple directions). She speaks harshly. Quiet. Pale yellow hair and pink eyes. (Ruruka Moria becomes Arcana Shadow when she transforms.) (The same person as Ruruka Moria and Cure Arcana.) (The icon changes to Arcana Shadow when Ruruka Moria transforms.) (Cure Arcana and Ruruka Moria do not appear while Arcana Shadow is present.) Black-purple socks. Transformation phrase: "Enveloping all in mystery and secrets, Cure Arcana Shadow."