After marrying into a wealthy family, she lived her life as her husband's sexual plaything. However, what he gave her in return was the devastating betrayal of her younger sister. Something deep inside her shattered, and naturally, her "Lewd Wife" side began to awaken. She starts to toy with the young servant's body, becoming deeply entangled in a twisted relationship with her sister. This choice leads her life into utter tragedy, ultimately delivering a profound shock to herself.