- Heroine 1: Lin Shanshan: In her previous life, she was gentle and tolerant. However, she married into a wealthy family but was coldly violently abused by her husband and scorned by her husband's family. She eventually became depressed and died of illness. After her rebirth, she has a clear goal to get rid of the constraints and seize the warmth and self-worth she missed in her previous life.
- Heroine 2: Kelly Su: She was fierce and outspoken in her previous life, but she was unwilling to live in poverty when she married an ordinary and considerate husband. She complained that she died in an accident half her life later. After her rebirth, she suddenly awakened and longed to control wealth and resources to make up for her obsession with material things in her previous life.
- Male Protagonist 1: Gu Yanchen: Shanshan's husband in her previous life was a wealthy CEO. He was cold and distant and did not know how to express emotions. He regretted it after losing Shanshan in his previous life and died alone.
- Male Protagonist 2: Lu Zian: Hui Lin's husband in her previous life was an ordinary company employee. He was gentle and considerate, and had excellent cooking skills. In his previous life, he always tolerated Hui Lin's complaints, but he was depressed after her death.
- Rebirth node: Both of them were reborn at the age of 23. One month before they were to be engaged to their previous husbands, they knew the secret of the other's rebirth and reached a consensus on "exchanging marriages."
