Regarding Brother Long's writing, this one is really highly recommended. It's a story about rebirth without CP, another life with different results in time and space, and he is a complete music person!
I read this story a long time ago. I thought it was about rap. The male protagonist used to be a trainee, but he disappeared after an accident. Then he became a rapper. He seems to have been in love later, so it's not a CP-free story.