Hot Air Balloon on the Mountain

The background of the story is Lishan thirty years ago. A daughter who is still in college suddenly returns to her hometown in Lishan to see her father, planning to stay for a few days and then leave. The father, who is bold but has a bad temper, has a baby with his stepmother. He makes a living by selling pesticides. He is in conflict with local competitors for agency rights, which is well known in the countryside.