Isekai Mokushiroku Mynoghra Hametsu no Bunmei de Hajimeru Sekai Seifuku

I reincarnated as an evil god
Ira Takuto succumbed to illness at a young age and ended up reincarnating in a world that resembled the strategy simulation game Eternal Nations of which he loved playing when alive What appeared in front of him was Atou a girl belonging to the evil civilization that he used to play as Mynoghra The two of them decided to create a new country in this world once again