The Beginning of the Story of Saving Old Jia in the Courtyard House

An accident sends Zhang Ping'an back to the early days of the People's Republic of China, where he becomes Jia Zhangshi, the half-brother of Zhang Xiaohua. The siblings are 21 years apart in age. Old Jia is rescued at the beginning, and He Daqing does not go far to Baocheng. Will Yi Zhonghai and the deaf old lady still be able to control everything in the courtyard?