Different World Alchimaira: The Weakest King and Matchless Army

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...! (Source: MU)