C2519 Why?

The void around Yin Tian Zi began to distort, the Qi of life, death, and death were spreading in all directions.

Finally, thousands of phantoms of the Great Dao flickered and condensed into a book that displayed thousands of profound mysteries. On the cover, there were three "Book of Life and Death" carved from the Great Dao.

As Son of the Monarch of the Underworld