Datang: It's a Showdown, I Am the All-Around Master

Traveling through the Tang Dynasty, Yi Yin carried a system with him, which allowed him to bring all kinds of new things to the Tang Dynasty. Now that's it! "Divine Doctor Yi, my wife is having difficulty giving birth. Please save my wife and baby quickly!" Yi Yin: "Don't worry, I'll do it for her by caesarean section! Make sure mother and child are safe!" Li Shimin: "Miracle doctor, the officials are rebelling, and we are in short supply of food and grass. I will mortgage the princess to you. How about you lend me some food to ease my urgent need?" Yi Yin's eyes lit up: "Use the princess as a mortgage? Easy to say, easy to say!" Li Shimin: "Yi Aiqing, the Tubo Kingdom has proposed peace to the Tang Dynasty. What do you think, Aiqing?" Yi Yin was furious: "Let him get away as far as he wants!" Li Shimin: "My dear, the Turkic thieves are powerful and ferocious, and our soldiers have suffered heavy casualties. Can you lend me some equipment first?" Yi Yin frowned slightly: "Don't you need a princess mortgage this time?" Li Shimin: "My dear, everything about our Tang Dynasty is good, but the lighting is a bit poor." Yi Yin: "Don't worry, Your Majesty, there will be bread and there will be electric lights. From now on, the Tang Dynasty will be brightly lit!" Li Shimin: "Poetry Immortal, can you write a poem to praise our great achievements in the Tang Dynasty?" Yi Yin laughed loudly: "I laughed up at the sky and went out. How can we be from Penghao? How can we compose poems when you ask us to do so?" Let's see how Yi Yin plays with the entire Tang Dynasty...