Becoming an NPC in the Emperor's City: Starting from Qin Shihuang

Lin Yi was accidentally selected by the NPC system and went to the Emperor's City to become an NPC. I thought it was a boring life, but I didn't expect it to be so fun. Today I watched Ying Zheng beat his son violently. Tomorrow we will see Gaozu teach his descendants. The day after tomorrow I will see Cao Cao and Liu Bei fighting each other. While Lin Yi was watching the show, he also didn't forget to make some sales. "First Emperor, would you like to see the house?" "Gaozu, would you like to see the weapons?" "Boss Cao, do you need some medicine to strengthen your body?" … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.