Arms Dealer in Late Han Dynasty

The miserable migrant worker Liang Yinggang was frustrated by his mistakes and was hit again while walking on the road. "Oh no, no, no, I traveled to the end of the Eastern Han Dynasty, and ended up under the sworn altar of Liu Guan and Zhang Zhang?" The time travel actually brought an arsenal system with it. Tracing back to the source, this system turned out to be given by another self in parallel time and space? Then watch me take the arsenal system and kill indiscriminately in the late Eastern Han Dynasty. By the way, I also need to make money, get my girlfriend back, and get back to the top of my life!