The story of a drink begins with winter frost. That winter was unusually cold, with sleet pelting the old plum tree and disrupting the family’s rhythm of life.The entire plum orchard’s harvest was lost. Father stood beneath the old plum tree left by great-grandfather, gazing at the sparse fruit, his eyes holding unspeakable tears. He didn’t complain or say much, just left earlier and came home later.He always believed one thing—the land will not disappoint those who work hard. After the frost and snow, in the spring cold, mother discovered a glimmer of hope on the branches.Though few, the plums…