Nana Aiba, a new office lady who joined an underwear maker. She is told about the harsh business situation at the time of the interview, and under the condition that she will be dismissed immediately if she does not become an immediate force, she will be attached to it and will be made to model the new work announcement that is held every year ... Dad, mom, I'm worried if I can do well at this company. A slender office lady who has a firm belief but is weak to push replaces the mouse with a cock to survive in a black company full of power harassment!