Postal worker Wang Tianming has traversed 400,000 kilometers across the mountains of Yiwangxi Town, in Changsha, Hunan Province, over the past 30 years, delivering more than 500,000 pieces of mail. Locally known as the "Living Post Office," he has transformed his delivery facility into a hub where villagers can exchange information and stay connected with the outside world. Inspired by his father, he has worked steadfastly and humbly, witnessing the development of the countryside.