Chie was involved in a traffic accident, losing both her parents and suffering serious injuries herself. She was taken by Nobuyuki, the doctor at the hospital where she was treated for the accident, and they fell in love and married. They were meant to live happily together, raising their child, Ohto, but after giving birth, she was told she had only a short time left to live, and he asked for a divorce and forced her to give up custody. However, it was all a clever trap set up by Nobuyuki to have Chie act as a surrogate mother, and then get rid of her when she was no longer needed. Chie was saved at the last moment by the doctor, Toru, and faked her own death, escaping Nobuyuki's control. Three years later, with a new face and name, she infiltrates the Saigawa household under the guise of a housekeeper. Is it all to get her child back? (Source: SORAJIMA, translated)