Six years ago, in order to force a woman to relinquish the inheritance left by her mother, her father conspired with a cunning woman to drug her. While escaping, the woman accidentally collided with a man being chased by others. They sought refuge in a car and had an encounter. Later, the cunning woman discovered that the man the woman had an encounter with belonged to Kyoto's top wealthy family. To marry into this wealthy family, the cunning woman disguised herself as the woman and got into the car. Nine months later, to hasten her entry into the wealthy family, the cunning woman harassed the woman into premature labor. Her plan was to inherit the family fortune if the woman died and to use the child in her womb to secure her position in the wealthy family. The woman gave birth to three children, but the doctor informed the cunning woman that there were only two—a stillborn and a healthy child. Six years later, the woman finally learns the truth about what happened during childbirth. She decides to seek revenge on the cunning woman.