Good-For-Nothing Junior Brother and Genius Senior Sister

Su Yun traveled to a strange fantasy world and became an ordinary disciple of the Tianyuan Sect. He discovered that his master only had two disciples, one was a good-for-nothing himself, and the other turned out to be an extremely talented little senior sister! I am a loser, but my senior sister is a genius! That was before, now let's see how Su Yun becomes the strongest in the world step by step! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.