Instead of Marrying the Mine, I Raised the Black-Armored God of War by Smelting Iron.

Jiang Zhaoyue was sent as a substitute for marriage by the Hou Mansion, and everyone was waiting for her to die in the Black Stone Mine. But they didn't know that she was a materials engineer. What others see as a waste mine is an undiscovered treasure in her eyes. Starting from rescuing a group of mining slaves, she modified furnaces, smelted iron, built workshops, and turned a dead man mine into an imperial arsenal. And the crippled God of War, who had been abandoned by everyone, stood up again in her hands. She smelt iron. What he rekindled was his fighting spirit. When the Black Armored Army was born, the world would know—— What is hidden in the black stone mine is not just iron.