After Switching Classes with My Younger Brother, I Became Number One in the World

My brother and I traveled into the world of immortals and heroes, but accidentally saved the two girls of gods and demons. The goddess is pure and cold as ice, while the witch charms all living beings and is as passionate as fire. In the last life, my younger brother claimed to follow the goddess on the righteous path, but he didn't want the goddess to practice the ruthless path. The ruthless path is boring and boring. On the contrary, I followed the witch and succeeded in cultivating it casually. He held a grudge, and when I was being congratulated by thousands of people, he suddenly went crazy and died with me. When he opened his eyes again, everything started over again. He followed the witch first, while I calmly walked towards the goddess. Oh, what's the point of coveting love? In this life, I want to be the best in the world.