What Should I Do After Suddenly Swapping Bodies with a Fairy?

Lu Su and Ning Qiongwu suddenly discover that they've switched bodies, and that they can keep switching back and forth indefinitely. So the two of them start clashing across different times and places. Lu Su: Could you stop practicing those weird techniques? I feel like my brain is getting pointy. Ning Qiongwu: You started it! Lu Su: If you show me no mercy, don't expect any from me! Ning Qiongwu: Hmph, enough talk. Unleash the power of the Nine Dragons! That day, their faces were flushed and their hearts raced as they talked about each other and the future.