The main heroine, she made a contract with Togashi Yuuta. She is an active Chuunibyou, who still has the syndrome. Her delusional syndrome involves her right eye which she calls it her "Wicked Eye," in which according to her it wields darkness tamed by the power of a pure heart. Actually, her so called "Wicked Eye" is nothing more than a colored contact lens which she conceals underneath an eye-patch. Despite being quite attached to Yuuta, she is cautious of strangers and adapts a battle pose whenever she meets someone for the first time. She is also rather clumsy, often tripping over and forgetting things.