I Became a Loulan Refugee, but I Can't Read the Script

Modern man Lin Yuan transmigrates to Loulan, only to be bound to an altar for a live sacrifice on his very first day. He cannot read the writing of this world, yet he can calculate trajectories, repair the city’s defenses, and teach the entire city every craft under the sun. With the Xiongnu cavalry bearing down from the north and powerful ministers in the city plotting to seize the throne, he treats them all as targets for his troops to train against. When he finally pulls Loulan back from the brink, he discovers that he has long been trapped in this game of chess, and the road home is gone.