Lin Wan wakes up one morning in the year 1960, a tiny six-year-old with asthma.
Her only golden finger is the canvas bag her mother prepared: it restocks basic medicine and snacks every day, and comes with a little bunny-shaped smartwatch with a phone.
Lost and bewildered in the northwestern sandstorms, she eventually discovers that the stuttering, insecure boy abused by his relatives is her own grandfather. He will make his fortune from nothing in the future, but die young. Right now, he can't even get a complete sentence out.
Lin Wan: Don't cry, Grandpa. I've got medicine, bread, and a knowledge base sixty years ahead of its time!
The skinny, dark-skinned ten-year-old stutterer: