Episode :
Masato endures harassment and mistreatment at the hands of the Shinjo sisters, two older women employed as his private tutors. Worn out both physically and mentally by their relentless behavior, he finds assistance from Sakiko, the proprietor of an enigmatic establishment known as ‘Gentil Donna.’ This woman provides him with a mind control device, which he intends to use for revenge against his instructors. Initially, he exerts control over Serina, and after he has sexually assaulted her, he coerces her into ensnaring his subsequent target, her sister Haruna.
