The outstanding chemist Li Wei was accidentally bombed during the Xianping period of the Song Dynasty.
As soon as you open your eyes, you are bound to the "daily necessities manufacturing system". Soap, perfume, and glass mirrors are easily unlocked, and the money comes rolling in.
Relying on modern memory, he accurately grasped the rise and fall of the Song Dynasty and spent money to recruit the old troops of the Yue Family Army.
He also used chemical knowledge to create modern gunpowder and simple guns, and formed an invincible firearms battalion.
Seeing the Jin soldiers marching south, Li Wei sneered: "Come and try my homemade grenades."
From accumulating wealth to training powerful soldiers, he not only reversed the humiliation of Jingkang, but also advanced all the way, allowing the Song Dynasty dragon flag to be planted all over Asia...