Waga Gyouyuu ni Furueyo Tenchi: Alexis Teikoku Kouryuuki

This is the story of Leonard and his great counterattack. A rugged and clumsy boy, he was given the dishonorable name of "Nosferatu" and deprived of his homeland. In the throes of war, he encounters injustice and begins to lose hope... But Leonard, who swore to make a comeback, was truly undefeatable! And among those who were drawn to his amazing dedication were many great generals, wise men, talented women, and geniuses who could be called gods or demons. Soon they became a force capable of swallowing up their corrupt homeland and crossing swords with all the surrounding superpowers! "Come, let us build your empire." Exciting and fully fledged—the story of Leonard's courage, with many heroes and heroines, bravery and tactics burning in his heart, now begins!!

(Source: Square Enix)