One Foot Between Immortals and Mortals

Failed in the spring election, and the Immortal Sect is unknown. Lu Heng was judged as a rootless person by the spirit testing array. He thought he could only stay in an old tool shop for the rest of his life, dismantling scrap copper, moving wooden boxes, and repairing things for others, but he would never be able to leave his name on paper. Until he saw the examination registration list on the side wall of the county calibration office. Take the test in ten days and travel with you in a hundred days. The lamp at the mine vent, the misaligned diversion device on the river, the bell in the old temple that only rang half a tone... Those artifacts that could not be found faulty on the standard bench would always show a different look in Lu Heng's hands. He has no famous teachers and no magical treasures. There is only an old needle that can go astray, a book that dare not make mistakes, and repeated inspection opportunities in exchange for money, reputation and guarantees. He originally just wanted to be a school worker who could sign his name. Later, I discovered that the things in the world that were condemned as waste were far more than just remnants of weapons. There are people.