Shiratori Ayaka is known as an intelligent and beautiful education critic who speaks candidly and sharply. Her comments are always honest, sometimes provocative. Yukiyo, a powerful figure in the Yabuta Group, desires to present Ayaka on a depraved stage. To fulfill this desire, she carries out a plan to abduct and imprison Ayaka together with her own daughter Noriko (Oosawa Mika), and systematically train her as a sex slave.