On the Serdeas continent, seven races worshiping seven gods—Dinosaurs, Mermen, Dwarves, Elves, Zoans, Harpyans, and Humans—live together. Deeply engraved in the long history of the continent is the name of one man: Soma Kisaki, the "Child of Destruction." Suddenly appearing in the western region of ancient Serdeas, he led a race once scorned as subhuman in rebellion, burning down many cities and destroying several kingdoms. He brought war, terror, and destruction to the entire continent, becoming a man feared even now as the worst destroyer and murderer in history. However, his true identity is Souma Kisaki, an ordinary boy from modern Japan who loves anime and manga. In a world without levels, skills, or magic, this ordinary Japanese boy, stripped of his ability to fight, sheds tears, vomits, and experiences setbacks, yet uses his wits to fight alongside his companions, carving his name into history. This is a grand epic fantasy.