C443
After sending off everyone in Shen Family, he followed Du Qianqian to the Sun family and accompanied Du Mingjun's maternal grandma for two days. Du Qianqian took Pei Yin back to the S province.
S province was just south of D province, two provinces, one south and one north, and the capital was in the south of S province. It would take one day and one night to take the train, of course