I'm a Local in a Period Novel, and Someone Stole My Body

One day, the little fool from Yao Er’s family suddenly became clever. The neighbors all said that the widowed mother and orphan in the Yao family had finally seen better days. Only Yao Qimei knew that a soul from the future had taken over her body, and somehow she herself had become a little fool... Later, she even heard that the body stolen from her belonged to the heroine of a book...