Huang Xinjie, who has always been at the top of her class, did an internship at a very special family school under the recommendation of Professor Li. There she met Zhuang Keqiang, who graduated from the Department of Traffic Management one class higher than her. Zhuang Keqiang passed the postal examination and became a postman. Huang Xinjie still stayed in the face of the naughty children; at first, the children did not welcome her arrival because they liked a free and unfettered life without anyone to control them