This Great Immortal Is Anything but Proper

Qin Feng transmigrates to a world of immortal cultivation where the strong prey on the weak. He thinks his golden finger is finally here and that he'll soar to success, only to end up bound to a bizarre [Seven Emotions System].

Other people's Systems are decisive killers with heaven-defying techniques. His System's original owner, though, is a shameless old lecher. The treasure vault contains hardly any proper divine arts, and the whole place is packed with bizarre techniques that make your face burn:

Black Dragon Eighteen Hands, Phoenix-Subduing Eighteen Forms, Eighteen Changes of a Young Woman...

Almost every technique worth using has “Eighteen” in its name.

To survive, Qin Feng has no choice but to grit his teeth and practice these indecent techniques, constantly hopping between righteousness and the outrageous. With his absurd divine arts, he stirs up the world and subdues the heavens. At last, when he reaches the pinnacle, he finally meets the legendary original owner of the System and can't help blurting out the question that's been burning in his soul: “Why do all your techniques have to involve ‘eighteen’?”

The original owner glances at him and answers with complete conviction:

“Nothing special. I just like eighteen.”

Qin Feng: “...”