Maki was living happily as her master's beloved mistress, enjoying intense and passionate play every day. However, her blissful life took a turn when she was ordered to care for her master's friend's female slave—the "second slave candidate." Forced to engage with the younger slave, Maki found herself subjected to increasingly degrading and humiliating acts. As her masochistic nature deepened day by day, she edged closer toward ultimate, borderline ecstasy. Yet, the constant assault on her pride as a woman became an unbearable trial. Ultimately, would she accept being discarded, and face the end of her emotions?