Shen Yan, a modern military doctor, accidentally exploded and traveled through the late Southern Song Dynasty, becoming a good-for-nothing bastard who can be bullied by everyone in the general's palace. He was incompetent in literature and martial arts, his biological mother died young, his brother bullied him, and everyone in the house regarded him as a piece of shit.
At the same time that the Mongolian and Yuan cavalry were pressing down on the country, the Song Dynasty was in turmoil, its armaments were depleted, and it was retreating steadily.
Shen Yan awakened his unique skills in military industry, improved crossbows, forged firearms, and forged magic weapons, using modern technology to sweep through the troubled times. From a humble concubine, he counterattacked step by step and became a master of protecting the country of the Song Dynasty. He turned the tide and defeated powerful enemies, and even won Qing Yuan's heart.
But he gradually discovered that this time travel was never an accident...
