Tazuru Kazami is infamous for her unique method of murder, bestowing her victims with the honor of being considered works of art. With a body count of 89, Kazami turned herself over to authorities. However, her gruesome methods continue to incite others seeking fame and notoriety, transforming Japan into a gruesome and blood-soaked land. Though enigmatic, Kazami only divulges the identities of these mimics to one individual: typical college student, Yuki Otohito.
As the number of copycat crimes skyrockets, Yuki becomes intertwined in Kazami's beguiling schemes. While Yuki initially resents being thrust into this role, he remains unwavering in his determination to locate the killers and uncover the mystery surrounding his sister's disappearance.