Nima Yangzhen is a postman at the post office of Diqing Tibetan Autonomous Prefecture. She is a ordinary mother of a baby, but with professional skills and enthusiastic work attitude, Nima was recommended to participate in the selection of exemplary people in the autonomous prefecture. After winning she receives a job transfer order. She needs to leave her family temporarily to go to the remote Yunling Township to take over the job of the old post office director.

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