Magical Iron Cross: Cannon Is the Truth of the Empire

Traveling to the dangerous Rhine Empire in another world, Klaus started out as a low-level prison guard who couldn't even afford second-hand bullets. In order to survive, he relied on a "Memorandum of Truth" that predicted the future and a suspenseful masterpiece from his past life to transform into a great writer who was popular in the empire and earn insanely high royalties. However, readers don't know that this gentle national writer has poured all his royalties into the bottomless pit of Maneng Heavy Industry! While the great powers of the Old World were still complacent about magic arrays and cold weapons, Klaus had already used his pen to set off a torrent of pure steel: retired armor-piercing snipers, magic power armor, land battleships, and even ancient magical dreadnoughts! "Dignity is only on the edge of the sword, and truth is only within the range of the magic cannon." Starting from the sound of a gunshot in a ten-square-meter low-cost apartment, an iron-blooded handsome man who was cold during the day, worked hard at night, and finally led the Iron Cross heavy army to sweep across the gods was born!