The three sisters Satomi (Marina Yuzuki), Kaori (Karina Nishida), and Tachimi (Nina Nishimura) are toyed with by Kakinuma, a man dressed as a priest with half his face hidden by a mask. Then, an old woman disguised as a fortune teller who calls herself "Shojo Roshi" appears before them. The three sisters begin training under Shojo Roshi in order to get revenge on Kakinuma, but...