After Swapping Masters with My Younger Brother, I Became the Strongest in the World

My younger brother and I transmigrate into a world of immortals and martial arts, where we unexpectedly save two women, one divine and one demonic. The goddess is pure as ice and cold as frost, while the demoness is seductive and passionate as fire. In our previous life, my younger brother claimed to follow the righteous path and joined the goddess, only to discover that she cultivated the Heartless Dao. It was rigid and dull, and incredibly difficult to master. Meanwhile, I easily succeeded by following the demoness. He held a grudge. Just as everyone was congratulating me, he suddenly went berserk and tried to take me down with him. When I opened my eyes again, everything had started over. He rushed to follow the demoness, while I calmly walked toward the goddess. Hah, what's the point of chasing after love? This time, I'm going to be the greatest under Heaven.