On the day Lu Fengcheng, the Northern Realm's Asura, retires, he is penniless and collapses on a rain-soaked street. The stunning owner of a medical clinic, Su Jiu'er, takes him home.
A labor contract sets his monthly wage at 2,800, docks his pay for being late, and makes him pay full price for any medicine jars he breaks. The God of War who once struck terror into foreign forces has become a lowly medicine clerk, completely at the mercy of the clinic's proprietress.
No one knows that the person he has spent three years searching for, bound by an oath written in blood, is none other than the stingy, money-loving landlady standing before him. Only she can calm the murderous rage raging within him, and her penny-pinching harshness turns out to be the best medicine for him.
When his enemies surround the clinic, he takes off his apron and reveals his true prowess. In three minutes, he has thirty hired thugs kneeling in the alley. Only then does Su Jiu'er realize that the one she brought home was no stray dog, but an Asura who holds life and death in his hands.