Copy the following for the synopsis:
Tan Tingyan is an old-house restoration specialist who has been blacklisted by the industry. Just after losing her job, she inherits her grandmother's studio, along with 800,000 yuan in debt. Whenever she personally repairs damage to a real building, she can hear ten seconds of sound from the moment the damage occurred. The sound cannot be recorded or used as direct evidence, so she must rely on inspections, restoration work, and physical evidence to uncover the truth hidden in the walls.
Her first commission comes from a woman who lives alone and is preparing to sell her house for half its value. The real estate agent claims the house is haunted, with someone knocking on the walls every night. After repairing the wooden backing behind a mirror, Tan Tingyan hears a drill and the words, "Move the mirror farther left," leading her to discover a hidden device.
From a marital home being maliciously undervalued, to a community daycare center with structural problems, to an old apartment building where every resident claims never to have seen a fire, she takes on jobs to pay off her debts and builds a women's restoration team. They are repairing more than walls: they are also helping people who have been cheated on the price or kept in the dark reclaim their lives. Meanwhile, the last ledger her grandmother left behind is leading her to her mother, who disappeared three years ago.