Lin Xiao, an orphaned cleaner, always shares leftover food with stray cats and dogs on the street, and often runs errands for elderly residents living alone. One day, she accidentally loses the life-saving money of her elderly employer. She kneels crying to explain, only to be misunderstood. Unexpectedly, the employer's grandson is the college student Lin Xiao had silently helped before. After learning the truth, he not only voluntarily makes up the lost money, but also mobilizes his classmates to apply for a public welfare position for her. On the cold winter street, Lin Xiao's sincere kindness finally receives its own warm echo.
