My Soul Transmigrates into the Demon Ancestor from the Start

The male lead, Li Jianyi, transmigrates with his soul into the Primordial World, becoming its strongest demon patriarch, Luohu. His life as a Demon Venerable begins: killing, burning, abducting women, stealing candy from little girls, saving people out of kindness, and slaughtering everyone when he's in a foul mood. [Feel-good story + villain protagonist + no saintly self-sacrifice + dark fantasy + flirting with women] Give it a try if you're interested. The writing is average, but it's a fun read.