When Randy, wielding a greatsword, entered the world, he had no great ambitions. He simply wanted to make a fortune, to free his mother from suffering, and to send his younger brother to school. When he stood in the Dragon's Valley, crushing a giant dragon beneath his feet and becoming rich overnight, he was lost. Until one day, he suddenly discovered that there was too much injustice in this world. He finally found a lifelong goal to strive for: he would use his greatsword to carve out a crimson era for countless suffering people.