Douluo: The Void Demon God

The residual soul of the void monster from another universe fled to the starry sky and chose a young man on the blue planet to merge and coexist with him, and finally the coordinates were set at an inconspicuous village on the Douluo Continent.

(This book is also known as "Douluo: My Martial Soul is Gliza!")

(Single female lead, no harem.)