Jiang Bao'er, the only daughter of a wealthy merchant, inherits a massive fortune. Fearing her family estate will fall into outsiders' hands, she rescues a handsome convict slave and settles him in a small courtyard, hoping to have an heir to continue the Jiang family line. The convict slave acts mysterious, looking gentle yet hiding secrets. It is not until Prince Jing returns in triumph that Jiang Bao'er is shocked to discover that Ah Que, whom she spent her days and nights with, is actually Prince Xiao Jingchen. Court disputes follow one after another; the heroine only wants to live in peace, but the prince insists on keeping her by his side. A money-loving heroine and a cold-faced prince stage a sweet pet story of identity reversal and falling in love after marriage.