Struggling to meet his monthly sales targets, office worker Tanaka is ordered by Executive MAMI, the Dominatrix, to undergo personal training. Though Tanaka has long endured harsh criticism at work, the rigorous discipline and training awaiting him at MAMI's home far surpass anything he's experienced. Facing imminent layoffs, Tanaka has no choice but to unconditionally submit to every demand of the Dominatrix MAMI.