喀斯特

喀斯特 no Megacine. In the karst region of southwestern China, a rural area far from the city. Ziying is a woman who makes a living by raising cows. Her cow got sick and the village clinic couldn't treat it. She went to the town's agricultural and animal husbandry pharmacy for consultation and followed the veterinarian back to the village from the town. On the way back and forth for consultations, connect your own series of past events