“If I were to suddenly die… could I ask you to take care of my family?” For the sake of her beloved best friend, the heroine marries that friend’s husband. It is the one and only wish left behind by the dearest person in her life. To protect the two children her friend left behind, she becomes their stepmother. Hated by her stepson and stared at with open hostility by those around her, she nevertheless spends seven years in a contractual marriage, determined to keep the promise she made. And on the day the children finally come of age, she leaves them without any regrets, just as agreed, ready to begin a new life as a woman in her own right.