RBD-706 Beast of Lust's Cage Natsume Saion

Film Introduction

Mizuki and Chiaki are twin sisters, but the younger sister, Chiaki, is a repeat delinquent unlike her excellent older sister, Mizuki, and is sent to prison by Mizuki. After her release from prison, Chiaki, who swears revenge on her sister, confines her girlfriend Mizuki to her sex shop, and impersonates her sister and joins her newlywed family.