Programmer Qin Yuan transmigrates into a high-martial world, bearing the Giant Ape Evolution System. Starting out as the sickly son of a hunter, he rises against the odds from an outer-city constable to deputy chief constable of the Inner North City. With arrows, he slays fugitives who have undergone marrow cleansing; with his blade, he subdues powerful warriors who have strengthened their sinews; and in a single night, he destroys the evil Nether Lotus cult. In a world where strength reigns supreme, he crushes the arrogance of powerful clans and nobles with overwhelming might, rebuilds order in North City with an iron fist, and vows to carve out a clear sky for the common people.