Xu Zhibai, the top maintenance engineer of interstellar civilization, opens his eyes to time-travel into a bottom-tier odd-job worker without spiritual roots in the immortal cultivation world. Do cultivators rely on comprehension for flying swords? He pulls out a detector and finds out about spiritual well energy theft in three minutes; do Golden Core ancestors set up formations to scare people? He backhands and rubs shields, hand cannons, and exoskeletons, specializing in curing all kinds of defiance. While others seclude themselves to comprehend the Dao, he builds power grids, makes mechas, leads miners into an army, and even has his heavenly tribulation verified as an expired quality inspection agreement. All the way from an odd-job worker of Qinglan Sect to the chief engineer of Jiuyao, in front of absolute industrial technology, even immortal cultivation must talk about science.