Bai Zihua was once the strongest cultivator in the Immortal Realm and the leader of its greatest sect. But after accidentally killing his disciple Hua Qiangu, who had become a demon god, the heavens and earth changed color, and life lost all meaning. The belief that sustained him through countless lifetimes, keeping him alive and undying, was that he would find Hua Qiangu's soul and restore it into a whole disciple once more.
The writing is really good, a bit like the style of the previously acclaimed "Melancholy". I insist on never abandoning the writing.