Vergil sense his time for take some adventure is come, he carry all his secret with him to that world.
After arrive on that world, he learn that world still use sword and magic and symmetric warfare is always the answer.

The world with no shadow at all,... every battle won in open field, magic and sword classing
The world only know no lie and conspiracy in battlefield but evil is there hiding in plain sight
The world who keep their own corruption inside and grow like cancer waiting to be taker

is time some one from shadow protect and operating....

Assassin Master from other World

After the meeting at Châteauclair Palace, Vergil, Freya, and Aeka returned to Avalorne with an air of determination. The carriage ride was filled with quiet contemplation, each of them mentally preparing for the tasks ahead. Upon arrival, they wasted no time and immediately convened in Vergil's study to finalize their plans. 


"The parties are just the beginning," Vergil began, spreading out detailed notes and maps on the table. "Once we've destabilized their leadership, we'll need to act quickly to consolidate control over the aftermath. Aeka, your products will serve as both a distraction and a tool for gaining influence among the women of these families. Freya, you'll be handling Ravencourt, while I'll deal with Drakemont." 


Exceution of the planning(part 1)