Just as she was pregnant with her daughter, Naho, the man she was dating at the time, who was supposed to be her husband, suddenly stopped contacting her. She worked hard for the past 10 years to ensure her daughter would not have to endure the hardships of being a single mother. Her daughter graduated from college, got a job, got married, and a bright future awaited her. Then, one day, she unexpectedly had a relationship with her daughter's boyfriend. Despite her love for her daughter, she found herself unable to control the desires she had been suppressing...