These three novels together were called the trilogy of ancient words?

In the first book, the male protagonist was the female protagonist's master, and both of them were doctors. In the second book, the male protagonist was a killer who was poisoned by the Miaojiang voodoo. He had a stubborn love for food. When he first saw the female protagonist, he thought of her as a delicacy. The female protagonist was from a martial arts family. In the third book, the male protagonist was poisoned by his mother and could only have one woman. The female protagonist seemed to have a younger sister.

Answer 1

" Cold Mist "," Rules of Rebirth Space "," Walking with a Son ".