A modest and unassuming Natsu has a weak-willed and indecisive personality. One day, she starts dating Sato from the same department after he confesses to her. Although she usually wears plain glasses and has messy hair, her new allure catches the attention of her boss, who begins excessive sexual harassment from the next day... Unable to resist, Natsu gradually becomes conditioned to instant pleasure, developing a quick-arousal disposition as she falls deeper into ecstasy...
