Hey… why don’t we try out a bit of magic? Walpurgis. Twelve years ago—a nightmarish new school term. This is "Gaiden 1: The Black Inscription"—the origin of a legendary, smash-hit anime. At the academy twelve years ago, a trio of close friends—including Hiroko Takagi, who has a keen interest in astrology and sorcery—finds their belief in magic mocked by the student council president, Nami Kozono. A few days later, using a handwritten grimoire, Hiroko and her friends force Nami’s "lover," Junko Mochida, to perform a striptease on the stage during an all-school assembly. Then, the arrival of a transfer student, Reika Kitami, sends things spiraling in an entirely unexpected direction… The origin of a legendary, smash-hit anime—the secret of Walpurgis from twelve years ago—is finally revealed! You won’t be able to take your eyes off Hiroko, Reika, and the new characters who join the fray!!