Ms. Saeki quietly works at her desk without ever taking a break. Behind her plain glasses, she is so kind and timid that she cannot refuse any request and even endures casual sexual harassment. No one could imagine that this ordinary married office worker is secretly a cock-crazed sex addict obsessed with huge dicks. When a coworker tries to protect her from the harassment, his well-meant intervention opens the door to a dizzying world of pleasure and exposes the ravenous woman beneath her modest exterior.