The Carefree Son of a Concubine 逍遥庶子

【Refreshing Story, Multiple Female Leads, Farming, Domination, etc.】Lu Chang'an, the son of a concubine in the royal manor, was originally weak and useless, looked down upon by others, until his soul was transmigrated and everything turned around!Since they laugh at me, Lu Chang'an, then let them take a good look!!The Emperor: What? That son of a concubine knows how to make weapons?The beautiful empress of the enemy country: My elite troops are all gone? Find every possible way to get Lu Chang'an to my side!