Su Qingyuan
Previous life: The legitimate daughter of the Hou family, she was naive and cowardly, mistakenly believed in the scumbag step-sister, had her property taken away, her parents killed, and finally died tragically (at the age of 20) after being fed poison and alcohol.
After rebirth: Returning to the age of 16 and the eve of the Hairpin Ceremony, he has a "koi constitution" (the spirit carp saved in the previous life repays his kindness, and is blessed with good luck after rebirth, identifying treasures, avoiding dangers, and turning misfortune into good fortune). He has a sober and sinister personality, protects his shortcomings and dotes on his husband. He is good at using the memory of his previous life to do business and layout. The goal is to protect his family, revenge against scum, and join hands with the male protagonist for life.