“That day, an incredible miracle happened to the ‘world’s unluckiest man.’” Kamisaki Fukutaro’s life had been abandoned by ‘luck.’ Far from happy, he was used by his companions for their own convenience, and finally an evil god forced him to use the worst ‘calamity skill.’ However, due to the effect of this ‘calamity skill: great reversal,’ all of his stats were reversed, and only Fukutaro’s ‘luck’ jumped up to an abnormal value. In an instant, he became the ‘world’s most lucky adventurer,’ and together with the failing goddess of luck, he challenges the dungeon, a challenge created by the gods