Everyone who knows the name Oosawa Yukika (the lustful wife) is deeply involved in her life. Few are aware of the secret behind her birth and the legend surrounding it—her life was decided on the day she was born, 15 years ago, at the hospital where her mother was admitted. Her father, unable to suppress his lust, gave in to desire and fathered her, causing her to lose her virginity in the worst possible way. Later, she devoted her heart to her homeroom teacher, her first love, hoping to build a relationship with him, but he ultimately used and abandoned her, shattering her dreams of a happy life. Now 18, Yukika carries these traumas and passions as she recklessly risks her life, taking on a twisted death match where one woman faces three men. Even in such brutal circumstances, she continues walking her own path, choosing to live her life through repeated infidelity and destruction. Her figure is not merely that of an adulterous woman, but of someone who, while tearing her life apart, possesses the strength to stay true to her own choices—shocking many who witness her story.