The Life of a Fool: Fools Have All the Luck

Looking for a Period Novel Where the Male Lead Starts Out Foolish but Eventually Recovers

Looking for books similar to "After Transmigrating Into a Book, I Sold Lunchboxes to Support a Child and a Fool". The male lead became mentally impaired after being injured on a mission. He lived with Grandpa Liang, who later fell ill and was close to death, so he bought the female lead. The fool treated her very well. Later, after the male lead returned to normal, the female lead...