I Became King of the Savage Lands by Opening a Kindergarten

Lin Yan, a geological surveyor, wakes up as a painfully skinny slave in a savage world. No golden finger, no System, just brutal tribes, bizarre shamans, formidable warriors, terrifying savage beasts, and elves said to be beautiful but deadly. To avoid becoming the next bowl of meat soup or sacrificial offering, he decides to return to his old college side gig: teaching kids. He starts by showing wildling children how to wipe themselves with leaves and count with stones, then teaches basic formations to hotheaded warriors and temporarily babysits the elf clan’s wailing younglings... He only wants to survive in the cracks between the powerful. Then comes the Battle of Blood Valley. With the combined forces of three great tribes bearing down on them, he is forced to stand atop a tottering wooden wall. Only then does he get a good look at the fearsome, imposing Barbarian King at the head of the enemy army. That scar on his left cheek looks more and more like the mark Lin Yan accidentally drew with herbal juice on some mischievous kid who fell out of a tree all those years ago...