Sui Sui, a girl with the special ability to hear the residual sounds of old objects, ends up wandering and meets Lu Chuan, a wrongly accused repairman. Relying on each other, they use clues from old objects to uncover the truth behind past accidents and cooperate with judicial authorities to restore the facts. They run a community old-object repair shop, rescue old folk objects, help those who have lost their way, and safeguard the warmth of the marketplace. Through the completeness of a small family, they interpret the patriotic and family sentiments of ordinary people who hold fast to morality and pass down folk crafts.