[Journey to the West + not the Primordial World + original protagonist + no romance]
The map of Beiju Luzhou is entirely based on guesswork.
Wuxin is a pure, clear breath born from chaos when the world was recreated. With no parents, he sets out to discover the meaning of his birth. He imitates Sun Wukong, learning magic, becoming king, and wreaking havoc in Heaven. The Buddha... isn't part of this story.
In short, this is the story of someone searching for the meaning of his existence, his master, and his junior brothers as he goes on one adventure after another in Beiju Luzhou, then heads west.