This book mainly describes the stories between the author's OCs - Yan Le'an, Nangong Luoxi, Yu Junyi, and Mu Lingsheng.
To collect the five demon-killing songs, the first three are relatively simple, but the cost is quite high. The clues to the last two are slim, and you need to solve the puzzles in Mestilar to have a chance to get them, especially the last one...
Purpose: Write your own OC stories so that they will no longer feel empty
