In order to find out about his mother's death, Qin Hen transformed himself into Fourth Master Jiang's late lover, hoping to use Fourth Master Jiang's method to help him find out the truth about more than ten years ago.
As they get along, Qin Hen gradually understands Fourth Master Jiang's strength, gentleness, and dedication to love.
Qin Hen: The person I love is very dedicated, but unfortunately the person he loves is not me.
When all the conspiracies surface, when all the uses are made public, where will Qin Hen go?