Anna has been missing for a week. Worried about her Riko, her older sister, goes looking for her. The only clue Riko has is an ad for a self-enlightenment seminar. She joins the group hoping to find Anna, but she's unprepared for what awaits her there...

Katsuma, Great Lunarium's lone male executive, is the one who is tasked with enforcing this rule. Abusing his authority, he inflicts sexual pleasure hell on the female executives who fail in their tasks. Over the years, he had built up a deep enmity against these arrogant women who regularly bullied him, but now, it is time for his revenge. His next targets