Whispers circulate among the female students at Shinyo Academy, discussing a mysterious supernatural being known as Boogiepop. This enigmatic figure, rumored to eliminate individuals at the peak of their beauty, is actually a Shinigami who protects the world by taking the form of high school student Touka Miyashita. As a series of puzzling vanishings grips the school, Boogiepop resurfaces. Unbeknownst to many, a lurking threat within the academy prepares to unleash chaos. Boogiepop wa Warawanai intricately examines the intertwined concepts of humanity and time, weaving a tale of intricate relationships, emotions, and hidden pasts.