Sha Po Lang/杀破狼 by Priest

From the beginning, when the first bowl of Ziliujin was dug out of the ground,
it was destined that this world could never be peaceful again.

Ziliujin, a fuel-like resource, had turned Great Liang into the thriving nation that it is today. Though the discovery of Ziliujin led to unprecedented improvement in steam-powered technology, it had also put the nation before greedy eyes, threatening all four borders of the land.
In the seventh year of Long An's reign, the threat that had been surrounding Great Liang finally made its move, and overnight, all four frontiers were besieged by different forces. The years of stability accumulated were on the brink of collapse. Great Liang's fate lay on the shoulders of the Marquis of Order, and the Fourth Prince who was said to harbor the abilities of an "evil god".

Sha Po Lang is a historical steampunk that delves into the consequences of innovation, the ongoings and aftermaths of war, and how love not only has the capacity to save a person, but also a whole nation.