Rikka Takanashi

Master, Wielder of the Wicked Eye, 小鳥遊六花

The main character of the story is a young woman who continues to suffer from Chuunibyou syndrome. Her delusion centers around her right eye, which she refers to as her "Wicked Eye," believing it possesses dark powers controlled by her pure heart. In reality, this so-called "Wicked Eye" is merely a colored contact lens hidden beneath an eye patch. Although she is close to Yuuta, she remains cautious of strangers and adopts a defensive stance when meeting someone new. She is also somewhat clumsy, often stumbling and forgetting things. Her friend list on her phone consists primarily of Dekomori Sanae and her older sister Touka.

Spoilers:

As the story develops, Rikka and Yuuta fall in love eventually creating a "lovers contract" between them, a chuunibyou term they came up with in an attempt to avoid being in a normal relationship. Rikkas father died in the past and Rikka stubbornly denies that her father had died. Some time after, she accidentally met Yuuta, who was an active chuunibyou at that time, and was amazed by how cool Yuuta was as the Dark Flame Master. This caused her chuunibyou, since she believes her father is in the "Horizon."