After moving to Tokyo and making her debut, Natsumi has become a successful career woman. Amid her busy days, she's caught in an affair with her boss and forced to work overtime, enduring repeated sex. Yet, despite this, the emptiness in her heart remains unfilled. One day, she gets the chance to hang out with a coworker and experiences sex that borders on rape. This alone deepens her inner thirst, awakening new desires within her.