I Practiced Ninjutsu in the Tang Dynasty

The protagonist Lin Xuan traveled to the Tang Dynasty by chance, became Li Chengqian, and obtained a god-level Hokage system. "Cheng Qian, can you help my father build a palace with your wooden escape?" "Your Highness, there is a severe drought on Hedong Road. Please go to the rescue with water as soon as possible." I am a newbie writing a book, so please forgive me if the writing is not good, the introduction is weak, please read the text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.