I intended to become the world's strongest "man", but I ended up becoming the world's strongest "woman"...?!The adventurer, Lydel, wanted the miraculous stone, "Io's sacred stone", to make him the strongest "man" in the world.The result? Lydel became strongest, but turned into a girl at the same time.In order for her to regain her lost manhood, Lydel embarks on an adventure to find a new sacred stone...