I Passed the Civil Service Exam in the Cultivation World

An overworked office drone dies of exhaustion and transmigrates into the cultivation world as an "off-establishment odd-job worker" at a crumbling Earth God temple. While others cultivate through spiritual roots, sects, or fortuitous encounters, he relies on skills from his past life in the system—ledgers, KPIs, office politics, exploiting rule loopholes—plus a yellow register that reveals "incense offerings, merit, and karma." Crawling out from under a countdown to elimination as the lowest performer, he earns a formal post, builds the broken temple into a mighty city, and climbs all the way to the Heavenly Court that has been out of contact for tens of thousands of years. — Description from novelcodex.org