Rikka Takanashi is the main heroine of Chuunibyou demo Koi ga Shitai!. Her delusional syndrome involves her right eye, which she calls her "Wicked Eye," which according to her wields darkness tamed by the power of a pure heart. In actuality, 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. She also doesn't have many friends, as shown that in her mobile phone, she only has Dekomori Sanae and her older sister Touka as contacts.