Crossing Two Worlds to Become a Trader

After being ruined and losing everything by his former friend, Xu Ning accidentally found a bronze gate in his ancestral home that could travel to another world. From then on, the path to wealth of a 'trader' in two worlds officially began.Wine bottles for ginseng, mirrors for cordyceps, medicine for gold...In modern society, he became the richest man in the world, and in the other world, he equipped heavy weapons.You have martial arts, I have machine guns, you have catapults, I have mortars, you have repeating crossbows, I have Gatling.Modern weapons equip the army, and no one can match them!What is the Son of Heaven, what is the contemporary grandmaster, in front of Xu Ning, dragons must coil, and tigers must lie down.I, Xu Ning, am the master of this other world!