Mizuki Hijiri hoped for a typical school life after transferring to a new institution. However, when she encountered the notorious Hero Club, her plans quickly changed. Each member of the group was afflicted with a distinct variety of chuunibyou, including righteous hero Yamato Noda, who employed his athletic abilities to perform gallant acts and safeguard others. Kazuhiro Nakamura asserted that he was the product of a forbidden union between a demon and an angel, claiming to be the reincarnation of "Touga Ryushouin." Tomoki Takashima was a handsome otaku whose devotion was exclusively for the 2D anime girl Sora while Rei Tsukumo acted as a deceiver, leading covert machinations. Despite Hijiri's apathy, the Hero Club welcomed her as its newest participant, depriving her of the ordinary existence she desired. However, despite their unusual tendencies, their friendship was authentic, and participating in their delusions of power would only add to Hijiri's already exciting life.