Adopted from the Drama with the same name, Hello, Mrs. Money tells the story of Li Cha, a poor guy, and his billionaire aunt. To win the heart of his beloved girl who likes money, Li Cha asks his aunt to help. Having never met his aunt before, Li Cha recognizes an male employee, Huang Canghai, as his aunt by mistake. For their own benefits, Li Cha, Huang Canghai and Liang Jierui decide to pretend to be Li Cha's aunt together.