As a modern man, Li Feng transmigrates into another world.
It is a world teeming with ghost beasts. They possess all kinds of abilities, but are sworn enemies of humanity.
Humans cannot cultivate on their own. They can only grow stronger by obtaining the ghost beast jades inside the beasts.
By chance, Li Feng discovers that he can fuse cultivation techniques:
"What? I can fuse ghost beast techniques too?"
"Ghost beast techniques can create human pills? And those pills can be passed to others through the meeting of their dantians?"
From then on, Li Feng leads a double life:
Using human techniques, he wields a bright lamp and suppresses ghost beasts, earning the world's reverence;
Using ghost beast techniques, he defies the natural order and seals away the senses, plunging the world into silence.
I saw this book by chance. I didn't expect it to be quite good. The rest of it is quite enjoyable.