I Asked You to Guard the Border, but I Didn't Ask You to Have Amazing Infrastructure.

Xiao Fan, a construction dog, traveled through time and became a useless prince. He started in a winter city, surrounded by enemies on three sides, and faced a dead end! There are only three hundred old, weak, sick and disabled men under his command, and the warehouse is so empty that the rats will starve to death. His father and brothers are waiting for him to be trampled to pieces by a hundred thousand barbarians! In times of despair, the [God-level Civilization Infrastructure System] is activated! Starting with a cement blueprint, he poured a 100-meter defense line overnight! The old nobles mocked him for playing in the mud, but little did he know that a military fortress that would never fall rose from the ground! When the barbarians knocked on the gate, he took out a primitive grenade with his backhand, blowing up the enemy soldiers and knocking them off their feet! When [Quyuanli] filled the warehouse with grain, [Liquor] was exchanged for thousands of carts of gold... When the torrent of millions of steel crushed Ling Xiao, my father regretted: I asked you to guard the border, but I didn't let you be a super god in infrastructure!