Momoko works as a senior executive at her husband's company, but their marriage has long since deteriorated due to his constant womanizing. One day, she becomes infatuated with Saishi, a handsome new graduate employee, captivated by his pure and honest eyes. When an overnight business trip is scheduled in place of her husband, Momoko sees her chance and orders Saishi to accompany her. After successfully closing a deal, she invites him to a celebration under false pretenses, then begins seducing him under the guise of employee training. As Momoko's cunning schemes intertwine with Saishi's innocent heart, a new relationship begins to bloom.