The Thunder Lord of Medicine

In his previous life, he was an attending physician at a top-tier hospital. Now he has transmigrated into Shen Qing, a thug sent to serve in a frontier army. To survive in a cultivation world full of danger, he blends medicine and science into rudimentary military techniques, forging an unprecedented path of cultivation known as the School of Principle. He does it all for the day he can return alive to the cage that once crushed him and reclaim justice with his own hands.