There's definitely something wrong with this murder mystery game - Chapter 135 - 131 Screenwriter

I originally thought this was a world like an ordinary urban novel…Drawing comics by myself, traveling is pretty good.
But tell me, what happened to this magician called “Emiya Kiritsugu” who jumped on my face?
Who changed the settings?
Currently involved in the content of “F/Z”, “F/SN”, “Fantasy Carnival”, “The Emiya’s Meal”, “The Holy Grail of the Imperial Capital”, “FLA”, “Elmello II Event Book”, “FGO”, “FE”, etc.
Others related to “JOJO’s Bizarre Adventure”, “Rebellious Lelouch”, “Persona 5”, “Attack on Giant”, “Death”
“FGO”, “FE Series”, “FA”, “FSF”, “Cangyin”, “Magical Girl Illya” will be involved next…

- Description from novelbuddy

As the ruler of a munitions empire, Tang Mo unexpectedly fell and was transported to an entirely different world, where he also unexpectedly acquired a “King of Munitions” system.In this underdeveloped world, Tang Mo relied on the abilities granted to him by the system to drive the development of the entire world.After all, the desire for civilization conquest had always been the driving force behind progress, and life had continuously evolved between attack and defense over tens of millions of years...So, selling assault rifles to these archers and training knights to be tank operators... there shouldn't be any problem with that, right? XD

The Dayan Empire had enjoyed a reign of over thirteen hundred years.The Emperor was critically ill, the Crown Prince was regent, local immortal sects were entrenched, and central authorities were vying for power in the chaotic court.Upon waking,Xu Yuan saw a dilapidated temple in the mountain rain at night,saw the eerie, broken-armed stone Buddha,and,the mysterious woman by the fire, her face veiled by thin gauze.......He had become the ultimate villain's third son, of pure heritage and legitimate lineage.The fake villain, dressed in fine garments and enjoying luxurious feasts, simply waited to be humiliated, while the real villain was caught by the Big Ice Lump and dragged across the world in flight from the start.Golden finger?Only a fake villain relied on a golden finger to get rich, a true villain dared to confront a bleak life!“If Heaven had not birthed me, Xu Changtian, villains would be as eternal as the never-ending night.”“........”