At his new high school, Yuuta Togashi has a classmate who makes his hopes for an ordinary life difficult to maintain. Rikka Takanashi calls herself the vessel of the "Wicked Eye," openly embracing the sort of elaborate fantasy identity that Yuuta would rather forget.
During middle school, Yuuta styled himself the "Dark Flame Master." He now finds those memories so mortifying that he chose a distant high school where no one would recognize him. His former persona was an expression of chuunibyou: the belief that one possesses extraordinary powers or some other special connection to a fantasy world. Yuuta wants that phase firmly behind him, but Rikka's arrival in his life brings him face-to-face with the delusions he thought he had escaped.