Another World Nation Archimaira summary:
The VR game “Tactics Chronicle” is a state-management game. One day, Helian, a player who has reached the top of the game and become the king of a land of demons, is suddenly transported to another world, his own country in the game. What he saw there was a character from the game acting with his own ego…! This is the story of a human king who leads a warrior fusion demon beast. A super royal fantasy war story that begins with an alternate world transfer!