Aiyu took the place of her sister and married the disabled Lu Chengan.
Everyone laughed at her. A fake daughter married a loser. What a perfect match.
On their wedding night, he came in in a wheelchair and looked at her gloomily: "You pretend to be my wife, and after half a year, I will set you free."
She smiled and said, "Okay, please pretend to be my husband too."
The couple went from using each other to sincerely joining forces.