My Jade Pendant Can Penetrate the World of Bright Swords

Li Wen, a veteran of the 21st century, chose monetary settlement when he retired. He returned to his hometown to start his own business and opened a grain and oil store. He accidentally discovered that the jade pendant left by his grandma could travel between the world of swords and the modern world. With the help of this powerful function, Li Yunlong was provided with a large amount of materials to effectively support the Eighth Route Army in the war of resistance.