勇者と魔王は共生の時代へ！平穏な世界で役目を失った肩書だけの勇者・コルレオ。そんな彼の元に、異世界の勇者と魔王が現れる！新たな勇者と魔王の登場で、世界の均衡は崩れ始める――！ニューノーマルファンタジー、開幕！
An era of peace between the hero and demon lord is upon us! In this peaceful world, the hero Corleo is nothing but an empty suit. But one day, a hero and demon lord from another world appear before him! How will Corleo deal with the chaos these invaders bring to his world? A new type of fantasy epic now begins.
