The Strongest Prince of the Tang Dynasty!

Accidentally traveled through time and space and became a lame commoner named Li Chenggan. All the servants ran away and he had no food to eat. But could this stump Li Mu? No way. He had an all-powerful system, proficient in both civil and military strategies. He opened a clinic, built a dyeing factory, eight times the planting industry, and an unbeatable breeding circle. He vowed to do all the industries in the system and go back to be the prince? No way. He became sworn brothers with Sun Simiao, took Yuchi Gong as his younger brother, drank fine wine, lived in a high-end villa, Li Er asked to see him, but he told him he didn't have time. Changsun came to drink for free and asked him to pay. The princess took a fancy to his cloth? This can be discussed. Who said that you have to be an emperor to be happy? Enjoy life.