Mortal: Return of Yuan Nightmare

This book is a derivative work based on the legend of mortals cultivating immortals. It mainly tells the story of Yuan Xi, the ancestor of the demon world, who was introduced into a space crack by Han Li's design. Eventually, his physical body collapsed. His soul escaped after being seriously injured, was cut by a space crack, and almost died. Finally, a ray of essence and blood possessed the black water snake and rebuilt it. Friends who like mortals can read it.